Minor code refactoring

This reverts commit b05f76f848.

.github/workflows/dotnet-desktop.yml

@@ -0,0 +1,54 @@
+name: Build And Create Nuget Package
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+  schedule:
+    - cron: '3 0 * * 0'
+
+jobs:
+  main:
+    runs-on: ${{ matrix.environment }}
+    strategy:
+      matrix:
+        environment:
+          - macos-latest
+          - ubuntu-latest
+          - windows-latest
+    env:
+      DOTNET_NOLOGO: 1
+      DOTNET_CLI_TELEMETRY_OPTOUT: 1
+      NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
+      UNIT_TEST_PROJECT: QuestPDF.UnitTests/QuestPDF.UnitTests.csproj
+
+    steps:
+      - name: 📝 Fetch Sources 📝
+        uses: actions/checkout@v2
+
+      - name: ⚙ Setup .NET 6.0 SDK ⚙
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '6.0.x'
+          
+      - name: 🔄 Restore Nuget Packages 🔄
+        shell: bash
+        run: dotnet restore
+        working-directory: ./Source
+
+      - name: 🛠 Build Solution 🛠
+        shell: bash
+        run: dotnet build -c Release --no-restore
+        working-directory: ./Source
+        
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v3
+        if: ${{ matrix.environment == 'windows-latest' }}
+        with:
+          name: Build Package
+          path: |
+            **/*.nupkg
+            **/*.snupkg
+            !.nuget

QuestPDF.ReportSample/PerformanceTests.cs

@@ -1,75 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using BenchmarkDotNet.Attributes;
-using BenchmarkDotNet.Configs;
-using BenchmarkDotNet.Engines;
-using BenchmarkDotNet.Running;
-using Microsoft.VisualStudio.TestPlatform.TestHost;
-using NUnit.Framework;
-using QuestPDF.Drawing;
-using QuestPDF.Drawing.Proxy;
-using QuestPDF.Elements;
-using QuestPDF.Helpers;
-using QuestPDF.Infrastructure;
-using QuestPDF.ReportSample.Layouts;
-
-namespace QuestPDF.ReportSample
-{
-    [SimpleJob(RunStrategy.Monitoring, launchCount: 0, warmupCount: 1, targetCount: 256)]
-    [MinColumn, MaxColumn, MeanColumn, MedianColumn]
-    public class PerformanceTests
-    {
-        private PageContext PageContext { get; set; }
-        private DocumentMetadata Metadata { get; set; }
-        private Container Content { get; set; }
-
-        [Test]
-        public void Run()
-        {
-            ImagePlaceholder.Solid = true;
-            
-            var configuration = ManualConfig
-                .Create(DefaultConfig.Instance)
-                .WithOptions(ConfigOptions.DisableOptimizationsValidator);
-            
-            BenchmarkRunner.Run<PerformanceTests>(configuration);
-        }
-        
-        [IterationSetup]
-        public void GenerateReportData()
-        {
-            ImagePlaceholder.Solid = true;
-            
-            var model = DataSource.GetReport();
-            var report = new StandardReport(model);
-            Metadata = report.GetMetadata();
-            
-            var documentContainer = new DocumentContainer();
-            report.Compose(documentContainer);
-            Content = documentContainer.Compose();
-
-            PageContext = new PageContext();
-            DocumentGenerator.RenderPass(PageContext, new FreeCanvas(), Content);
-
-            var sw = new Stopwatch();
-            sw.Start();
-
-            Content.VisitChildren(x =>
-            {
-                if (x is ICacheable)
-                    x.CreateProxy(y => new CacheProxy(y));
-            });
-            
-            sw.Stop();
-            Console.WriteLine($"Creating cache took: {sw.ElapsedMilliseconds}");
-        }
-
-        [Benchmark]
-        public void GenerationTest()
-        {
-            DocumentGenerator.RenderPass(PageContext, new FreeCanvas(), Content);
-        }
-    }
-}

QuestPDF.UnitTests/PreviewerTests.cs

@@ -1,54 +0,0 @@
-
-
-using System;
-using NUnit.Framework;
-using QuestPDF.Fluent;
-using QuestPDF.Helpers;
-using QuestPDF.Infrastructure;
-using QuestPDF.Previewer;
-
-namespace QuestPDF.UnitTests
-{
-    public class PreviewerTests
-    {
-        [Test]
-        public void SendError()
-        {
-            Document
-                .Create(container =>
-                {
-                    container.Page(page =>
-                    {
-                        page.Size(PageSizes.A4);
-                        page.Margin(2, Unit.Centimetre);
-                        page.PageColor(Colors.White);
-                        page.DefaultTextStyle(x => x.FontSize(20));
-                        
-                        page.Header()
-                            .Text("Hello PDF!")
-                            .SemiBold().FontSize(36).FontColor(Colors.Blue.Medium);
-                        
-                        page.Content()
-                            .PaddingVertical(1, Unit.Centimetre)
-                            .Column(x =>
-                            {
-                                x.Spacing(20);
-                                
-                                x.Item().Text(Placeholders.LoremIpsum());
-                                x.Item().Image(Placeholders.Image(200, 100));
-                            });
-                        
-                        page.Footer()
-                            .AlignCenter()
-                            .Text(x =>
-                            {
-                                //throw new Exception("Dupa!");
-                                x.Span("Page ");
-                                x.CurrentPageNumber();
-                            });
-                    });
-                })
-                .ShowInPreviewer();
-        }
-    }
-}

QuestPDF/Drawing/Exceptions/DocumentLayoutException.cs

@@ -1,15 +0,0 @@
-using System;
-using QuestPDF.Previewer;
-
-namespace QuestPDF.Drawing.Exceptions
-{
-    public class DocumentLayoutException : Exception
-    {
-        internal LayoutErrorTrace? ElementTrace { get; }
-
-        internal DocumentLayoutException(string message, LayoutErrorTrace? elementTrace = null) : base(message)
-        {
-            ElementTrace = elementTrace;
-        }
-    }
-}

QuestPDF/Drawing/Proxy/DebuggingProxy.cs

@@ -1,34 +0,0 @@
-using System.Collections.Generic;
-using QuestPDF.Infrastructure;
-
-namespace QuestPDF.Drawing.Proxy
-{
-    internal class DebuggingProxy : ElementProxy
-    {
-        internal List<MeasureDetails> Measurements { get; } = new();
-
-        public DebuggingProxy(Element child)
-        {
-            Child = child;
-        }
-        
-        internal override SpacePlan Measure(Size availableSpace)
-        {
-            var spacePlan = Child.Measure(availableSpace);
-            Measurements.Add(new MeasureDetails(availableSpace, spacePlan));
-            return spacePlan;
-        }
-    }
-
-    internal struct MeasureDetails
-    {
-        public Size AvailableSpace { get; }
-        public SpacePlan SpacePlan { get;}
-
-        public MeasureDetails(Size availableSpace, SpacePlan spacePlan)
-        {
-            AvailableSpace = availableSpace;
-            SpacePlan = spacePlan;
-        }
-    }
-}

QuestPDF/Drawing/Proxy/Helpers.cs

@@ -1,45 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Linq;
-using QuestPDF.Helpers;
-using QuestPDF.Infrastructure;
-using QuestPDF.Previewer;
-
-namespace QuestPDF.Drawing.Proxy;
-
-internal static class Helpers
-{
-    public static IReadOnlyCollection<DocumentElementProperty> GetElementConfiguration(this IElement element)
-    {
-        return element
-            .GetType()
-            .GetProperties()
-            .Select(x => new
-            {
-                Property = x.Name.PrettifyName(),
-                Value = x.GetValue(element)
-            })
-            .Where(x => !(x.Value is IElement))
-            .Where(x => x.Value is string || !(x.Value is IEnumerable))
-            .Where(x => !(x.Value is TextStyle))
-            .Select(x => new DocumentElementProperty
-            {
-                Label = x.Property,
-                Value = FormatValue(x.Value)
-            })
-            .ToList();
-
-        string FormatValue(object value)
-        {
-            const int maxLength = 100;
-                
-            var text = value?.ToString() ?? "-";
-
-            if (text.Length < maxLength)
-                return text;
-
-            return text.AsSpan(0, maxLength).ToString() + "...";
-        }
-    }
-}

QuestPDF/Drawing/Proxy/InspectionProxy.cs

@@ -1,36 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using QuestPDF.Infrastructure;
-using QuestPDF.Previewer.Inspection;
-
-namespace QuestPDF.Drawing.Proxy
-{
-    internal class InspectionProxy : ElementProxy
-    {
-        public Dictionary<int, InspectionStateItem> Statistics { get; set; } = new();
-
-        public InspectionProxy(Element child)
-        {
-            Child = child;
-        }
-
-        internal override void Draw(Size availableSpace)
-        {
-            if (Canvas is SkiaCanvasBase canvas)
-            {
-                var matrix = canvas.Canvas.TotalMatrix;
-
-                var inspectionItem = new InspectionStateItem
-                {
-                    Element = Child,
-                    Position = new Position(matrix.TransX, matrix.TransY),
-                    Size = availableSpace
-                };
-
-                Statistics[PageContext.CurrentPage] = inspectionItem;
-            }
-            
-            base.Draw(availableSpace);
-        }
-    }
-}

QuestPDF/Drawing/Proxy/LayoutErrorAnalyzer.cs

@@ -1,74 +0,0 @@
-using System.Linq;
-using QuestPDF.Elements;
-using QuestPDF.Helpers;
-using QuestPDF.Infrastructure;
-using QuestPDF.Previewer;
-
-namespace QuestPDF.Drawing.Proxy
-{
-    internal static class LayoutErrorAnalyzer
-    {
-        public static void ApplyLayoutDebugging(this Container content)
-        {
-            content.VisitChildren(x =>
-            {
-                x.CreateProxy(y => y is ElementProxy ? y : new DebuggingProxy(y));
-            });
-        }
-        
-        public static void RemoveExistingProxies(this Container content)
-        {
-            content.VisitChildren(x =>
-            {
-                x.CreateProxy(y => y is ElementProxy proxy ? proxy.Child : y);
-            });
-        }
-        
-        public static void RemoveExistingContainers(this Container content)
-        {
-            content.VisitChildren(x =>
-            {
-                x.CreateProxy(y => y is Container container ? container.Child : y);
-            });
-        }
-
-        public static LayoutErrorTrace CollectLayoutErrorTrace(this Container content)
-        {
-            var proxies = content.ExtractProxyOfType<DebuggingProxy>();
-            return Map(proxies);
-
-            LayoutErrorTrace Map(TreeNode<DebuggingProxy> proxy)
-            {
-                var element = proxy.Value.Child;
-                
-                return new LayoutErrorTrace
-                {
-                    ElementType = element.GetType().Name,
-                    IsSingleChildContainer = element is ContainerElement,
-                    ElementProperties = element.GetElementConfiguration().ToList(),
-                    
-                    Measurements = proxy
-                        .Value
-                        .Measurements
-                        .Select(x => new LayoutErrorMeasurement
-                        {
-                            AvailableSpace = new QuestPDF.Previewer.Size()
-                            {
-                                Width = x.AvailableSpace.Width,
-                                Height = x.AvailableSpace.Height
-                            },
-                            SpacePlan = new QuestPDF.Previewer.SpacePlan()
-                            {
-                                Width = x.SpacePlan.Width,
-                                Height = x.SpacePlan.Height,
-                                Type = x.SpacePlan.Type
-                            }
-                        })
-                        .ToList(),
-                    
-                    Children = proxy.Children.Select(Map).ToList()
-                };
-            }
-        }
-    }
-}

QuestPDF/Previewer/ApiRequests.cs

@@ -1,44 +0,0 @@
-using System;
-using System.Collections.Generic;
-using QuestPDF.Previewer.Inspection;
-
-namespace QuestPDF.Previewer;
-
-internal sealed class IncompatibleVersionApiRequest
-{
-    
-}
-
-internal sealed class NotifyPresenceApiRequest
-{
-    public string ClientId { get; set; }
-    public string LibraryVersion { get; set; }
-    public bool IsDotnet6OrBeyond { get; set; }
-    public bool IsDotnet3OrBeyond { get; set; }
-    public bool IsExecutedInUnitTest { get; set; }
-}
-
-internal sealed class DocumentPreviewApiRequest
-{
-    public ICollection<PageSnapshot> PageSnapshots { get; set; }
-    public InspectionElement DocumentHierarchy { get; set; }
-        
-    public class PageSnapshot
-    {
-        public string ResourceId { get; } = Guid.NewGuid().ToString("N");
-        public int PageNumber { get; set; }
-            
-        public float Width { get; set; }
-        public float Height { get; set; }
-    }
-}
-
-internal sealed class GenericErrorApiRequest
-{
-    public GenericError? Error { get; set; }
-}
-    
-internal sealed class LayoutErrorApiRequest
-{
-    public LayoutErrorTrace? Trace { get; set; }
-}

QuestPDF/Previewer/Helpers.cs

@@ -1,22 +0,0 @@
-#if NETCOREAPP3_0_OR_GREATER
-
-using System.Net.Http;
-using System.Text;
-using System.Text.Json;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace QuestPDF.Previewer;
-
-internal static class Helpers
-{
-    public static Task<HttpResponseMessage> PostAsJsonAsync<TValue>(this HttpClient client, string? requestUri, TValue value, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default)
-    {
-        var json = JsonSerializer.Serialize(value, options);
-        var jsonContent = new StringContent(json, Encoding.UTF8, "application/json");
-        
-        return client.PostAsync(requestUri, jsonContent, cancellationToken);
-    }
-}
-
-#endif

QuestPDF/Previewer/Inspection/DocumentHierarchyProcessor.cs

@@ -1,60 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Linq;
-using QuestPDF.Drawing.Proxy;
-using QuestPDF.Elements;
-using QuestPDF.Helpers;
-using QuestPDF.Infrastructure;
-
-namespace QuestPDF.Previewer.Inspection;
-
-public static class DocumentHierarchyProcessor
-{
-    internal static InspectionElement ExtractDocumentHierarchy(this Container content)
-    {
-        content.RemoveExistingContainers();
-        
-        var proxies = content.ExtractProxyOfType<InspectionProxy>();
-        return Map(proxies);
-
-        InspectionElement Map(TreeNode<InspectionProxy> treeNode)
-        {
-            var proxy = treeNode.Value;
-            var element = proxy.Child;
-                
-            var locations = proxy
-                .Statistics
-                .Keys
-                .Select(x =>
-                {
-                    var statistics = proxy.Statistics[x];
-                    
-                    return new InspectionElementLocation
-                    {
-                        PageNumber = x,
-                        Position = new MyPosition
-                        {
-                            Top = statistics.Position.Y,
-                            Left = statistics.Position.X
-                        },
-                        Size = new Size
-                        {
-                            Width = statistics.Size.Width,
-                            Height = statistics.Size.Height
-                        }
-                    };
-                })
-                .ToList();
-            
-            return new InspectionElement
-            {
-                ElementType = element.GetType().Name,
-                IsSingleChildContainer = element is ContainerElement,
-                Location = locations,
-                Properties = element.GetElementConfiguration().ToList(),
-                Children = treeNode.Children.Select(Map).ToList()
-            };
-        }
-    }
-}

QuestPDF/Previewer/Inspection/DocumentPreviewResult.cs

@@ -1,10 +0,0 @@
-using System.Collections.Generic;
-using QuestPDF.Drawing;
-
-namespace QuestPDF.Previewer.Inspection;
-
-internal class DocumentPreviewResult
-{
-    public IList<PreviewerPicture> PageSnapshots { get; set; }
-    public InspectionElement DocumentHierarchy { get; set; }
-}

QuestPDF/Previewer/Inspection/InspectionStateItem.cs

@@ -1,34 +0,0 @@
-using System.Collections.Generic;
-using QuestPDF.Infrastructure;
-
-namespace QuestPDF.Previewer.Inspection
-{
-    internal class InspectionStateItem
-    {
-        public Element Element { get; internal set; }
-        public Infrastructure.Size Size { get; internal set; }
-        public Position Position { get; internal set; }
-    }
-
-    internal class MyPosition
-    {
-        public float Top { get; set; }
-        public float Left { get; set; }
-    }
-    
-    internal class InspectionElementLocation
-    {
-        public int PageNumber { get; internal set; }
-        public MyPosition Position { get; internal set; }
-        public Size Size { get; internal set; }
-    }
-    
-    internal class InspectionElement
-    {
-        public string ElementType { get; set; }
-        public bool IsSingleChildContainer { get; set; }
-        public IReadOnlyCollection<InspectionElementLocation> Location { get; set; }
-        public IReadOnlyCollection<DocumentElementProperty> Properties { get; set; }
-        public ICollection<InspectionElement> Children { get; set; }
-    }
-}

QuestPDF/Previewer/Models.cs

@@ -1,63 +0,0 @@
-using System;
-using System.Collections.Generic;
-using QuestPDF.Drawing;
-using QuestPDF.Infrastructure;
-using QuestPDF.Previewer.Inspection;
-
-namespace QuestPDF.Previewer;
-
-internal sealed class DocumentElementProperty
-{
-    public string Label { get; set; }
-    public string Value { get; set; }
-}
-
-internal sealed class Size
-{
-    public float Width { get; set; }
-    public float Height { get; set; }
-}
-
-internal sealed class SpacePlan
-{
-    public float Width { get; set; }
-    public float Height { get; set; }
-    public SpacePlanType Type { get; set; }
-}
-
-
-
-internal sealed class LayoutErrorTrace
-{
-    public string ElementType { get; set; }
-    public bool IsSingleChildContainer { get; set; }
-    public IReadOnlyCollection<DocumentElementProperty> ElementProperties { get; set; }
-    public IReadOnlyCollection<LayoutErrorMeasurement> Measurements { get; set; }
-    public IReadOnlyCollection<LayoutErrorTrace> Children { get; set; }
-}
-
-internal sealed class LayoutErrorMeasurement
-{
-    public Size AvailableSpace { get; set; }
-    public SpacePlan SpacePlan { get; set; }
-}
-
-
-
-
-
-
-    
-internal sealed class GenericError
-{
-    public string ExceptionType { get; set; }
-    public string Message { get; set; }
-    public string StackTrace { get; set; }
-    public GenericError? InnerException { get; set; }
-}
-
-
-
-
-
-

QuestPDF/Previewer/PreviewerExtensions.cs

@@ -1,63 +0,0 @@
-#if NETCOREAPP3_0_OR_GREATER
-
-using System;
-using System.Collections.Generic;
-using System.Threading;
-using System.Threading.Tasks;
-using QuestPDF.Drawing;
-using QuestPDF.Drawing.Exceptions;
-using QuestPDF.Infrastructure;
-
-namespace QuestPDF.Previewer
-{
-    public static class Extensions
-    {
-        public static void ShowInPreviewer(this IDocument document, int port = 12500)
-        {
-            document.ShowInPreviewerAsync(port).ConfigureAwait(true).GetAwaiter().GetResult();
-        }
-        
-        public static async Task ShowInPreviewerAsync(this IDocument document, int port = 12500, CancellationToken cancellationToken = default)
-        {
-            var previewerService = new PreviewerService(port);
-            
-            using var cancellationTokenSource = new CancellationTokenSource();
-            previewerService.OnLostConnection += () => cancellationTokenSource.Cancel();
-            
-            await previewerService.Connect();
-            await RefreshPreview();
-            
-            #if NET6_0_OR_GREATER
-            HotReloadManager.UpdateApplicationRequested += (_, _) => RefreshPreview();
-            #endif
-
-            while (true)
-            {
-                if (cancellationToken.IsCancellationRequested)
-                    break;
-
-                // ReSharper disable once MethodSupportsCancellation
-                await Task.Delay(TimeSpan.FromMilliseconds(1000));
-            }
-
-            Task RefreshPreview()
-            {
-                try
-                {
-                    var documentPreviewResult = DocumentGenerator.GeneratePreviewerPictures(document);
-                    return previewerService.ShowDocumentPreview(documentPreviewResult);
-                }
-                catch (DocumentLayoutException exception)
-                {
-                    return previewerService.ShowLayoutError(exception);
-                }
-                catch (Exception exception)
-                {
-                    return previewerService.ShowGenericError(exception);
-                }
-            }
-        }
-    }
-}
-
-#endif

QuestPDF/Previewer/PreviewerService.cs

@@ -1,267 +0,0 @@
-#if NETCOREAPP3_0_OR_GREATER
-
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Net.Http;
-using System.Net.Http.Json;
-using System.Text;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using QuestPDF.Drawing.Exceptions;
-using QuestPDF.Previewer.Inspection;
-
-namespace QuestPDF.Previewer
-{
-    internal class PreviewerService
-    {
-        private string ClientId { get; } = Guid.NewGuid().ToString("D");
-        private string LibraryVersion { get; } = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version?.ToString();
-        
-        private int Port { get; }
-        private HttpClient HttpClient { get; }
-        
-        public event Action? OnLostConnection;
-        
-        private const int RequiredPreviewerVersionMajor = 2023;
-        private const int RequiredPreviewerVersionMinor = 1;
-        
-        public PreviewerService(int port)
-        {
-            Port = port;
-            HttpClient = new()
-            {
-                BaseAddress = new Uri($"http://localhost:{port}/"), 
-                Timeout = TimeSpan.FromSeconds(1)
-            };
-        }
-        
-        internal static readonly JsonSerializerOptions JsonSerializerOptions = new()
-        {
-            PropertyNameCaseInsensitive = true,
-            MaxDepth = 256,
-            Converters =
-            {
-                new JsonStringEnumConverter(JsonNamingPolicy.CamelCase)
-            }
-        };
-
-        #region Connection
-        
-        public async Task Connect()
-        {
-            var isAvailable = await IsPreviewerAvailable();
-        
-            if (!isAvailable)
-            {
-                StartPreviewer();
-                await WaitForConnection();
-            }
-            
-            var previewerVersion = await GetPreviewerVersion();
-            await CheckVersionCompatibility(previewerVersion);
-
-            StartNotifyPresenceTask();
-        }
-        
-        private async Task<bool> IsPreviewerAvailable()
-        {
-            try
-            {
-                using var result = await HttpClient.GetAsync("/ping");
-                return result.IsSuccessStatusCode;
-            }
-            catch
-            {
-                return false;
-            }
-        }
-        
-        private void StartPreviewer()
-        {
-            try
-            {
-                var process = new Process
-                {
-                    StartInfo = new()
-                    {
-                        FileName = "questpdf-previewer",
-                        Arguments = $"{Port}",
-                        UseShellExecute = false,
-                        CreateNoWindow = true
-                    }
-                };
-                
-                process.Start();
-            }
-            catch
-            {
-                throw new Exception("Cannot start the QuestPDF Previewer tool. " +
-                                    "Please install it by executing in terminal the following command: 'dotnet tool install --global QuestPDF.Previewer'.");
-            }
-        }
-        
-        private async Task WaitForConnection()
-        {
-            using var cancellationTokenSource = new CancellationTokenSource();
-            cancellationTokenSource.CancelAfter(TimeSpan.FromSeconds(10));
-            
-            var cancellationToken = cancellationTokenSource.Token; 
-            
-            while (true)
-            {
-                // ReSharper disable once MethodSupportsCancellation
-                await Task.Delay(TimeSpan.FromMilliseconds(250));
-        
-                if (cancellationToken.IsCancellationRequested)
-                    throw new Exception($"Cannot connect to the QuestPDF Previewer tool. Please make sure that your Operating System does not block HTTP connections on port {Port}.");
-        
-                var isConnected = await IsPreviewerAvailable();
-        
-                if (isConnected)
-                    break;
-            }
-        }
-        
-        #endregion
-        
-        #region Checking compatibility
-
-        private async Task<Version> GetPreviewerVersion()
-        {
-            using var result = await HttpClient.GetAsync("/version");
-            var response = await result.Content.ReadFromJsonAsync<string>();
-            return Version.Parse(response);
-        }
-
-        private async Task CheckVersionCompatibility(Version version)
-        {
-            if (version is { Major: RequiredPreviewerVersionMajor, Minor: RequiredPreviewerVersionMinor })
-                return;
-
-            await ShowIncompatibleVersion();
-            
-            throw new Exception($"Previewer version is not compatible. Possible solutions: " +
-                                $"1) Update the QuestPDF library to newer version. " +
-                                $"2) Update the QuestPDF previewer tool using the following command: 'dotnet tool update --global QuestPDF.Previewer --version {RequiredPreviewerVersionMajor}.{RequiredPreviewerVersionMinor}'");
-        }
-
-        private async Task ShowIncompatibleVersion()
-        {
-            var payload = new IncompatibleVersionApiRequest();
-            await HttpClient.PostAsJsonAsync("/update/incompatibleVersion", payload, JsonSerializerOptions);
-        }
-        
-        #endregion
-        
-        #region Reporting presence
-        
-        private void StartNotifyPresenceTask()
-        {
-            Task.Run(async () =>
-            {
-                while (true)
-                {
-                    await NotifyPresence();
-                    await Task.Delay(1000);
-                }
-            });
-        }
-        
-        private async Task NotifyPresence()
-        {
-            var payload = new NotifyPresenceApiRequest
-            {
-                ClientId = ClientId,
-                LibraryVersion = LibraryVersion,
-                IsDotnet6OrBeyond = RuntimeDetector.IsNet6OrGreater,
-                IsDotnet3OrBeyond = RuntimeDetector.IsNet3OrGreater,
-                IsExecutedInUnitTest = UnitTestDetector.RunningInUnitTest
-            };
- 
-            await HttpClient.PostAsJsonAsync("/update/notifyPresence", payload);
-        }
-        
-        #endregion
-        
-        #region Updating state
-
-        public async Task ShowDocumentPreview(DocumentPreviewResult documentPreviewResult)
-        {
-            using var multipartContent = new MultipartFormDataContent();
-            
-            var pages = new List<DocumentPreviewApiRequest.PageSnapshot>();
-            
-            foreach (var snapshot in documentPreviewResult.PageSnapshots)
-            {
-                var page = new DocumentPreviewApiRequest.PageSnapshot
-                {
-                    PageNumber = documentPreviewResult.PageSnapshots.IndexOf(snapshot) + 1,
-                    Width = snapshot.Size.Width,
-                    Height = snapshot.Size.Height
-                };
-                
-                pages.Add(page);
-            
-                var pictureStream = snapshot.Picture.Serialize().AsStream();
-                multipartContent.Add(new StreamContent(pictureStream), "snapshots", page.ResourceId);
-            }
-            
-            var request = new DocumentPreviewApiRequest
-            {
-                PageSnapshots = pages, 
-                DocumentHierarchy = documentPreviewResult.DocumentHierarchy
-            };
-            
-            var json = JsonSerializer.Serialize(request, JsonSerializerOptions);
-            var jsonContent = new StringContent(json, Encoding.UTF8, "application/json");
-            multipartContent.Add(jsonContent, "request");
-            
-            using var response = await HttpClient.PostAsync("/update/documentPreview", multipartContent);
-            response.EnsureSuccessStatusCode();
-            
-            foreach (var picture in documentPreviewResult.PageSnapshots)
-                picture.Picture.Dispose();
-        }
-        
-        public async Task ShowGenericError(Exception exception)
-        {
-            var payload = new GenericErrorApiRequest
-            {
-                Error = MapException(exception)
-            };
-
-            await HttpClient.PostAsJsonAsync("/update/genericError", payload, JsonSerializerOptions);
-            
-            static GenericError? MapException(Exception? exception)
-            {
-                if (exception == null)
-                    return null;
-                        
-                return new GenericError
-                {
-                    ExceptionType = exception.GetType().FullName, 
-                    Message = exception.Message, 
-                    StackTrace = exception.StackTrace, 
-                    InnerException = MapException(exception.InnerException)
-                };
-            }
-        }
-        
-        public async Task ShowLayoutError(DocumentLayoutException exception)
-        {
-            var payload = new LayoutErrorApiRequest
-            {
-                Trace = exception.ElementTrace
-            };
-            
-            await HttpClient.PostAsJsonAsync("/update/layoutError", payload, JsonSerializerOptions);
-        }
-        
-        #endregion
-    }
-}
-
-#endif

QuestPDF/Previewer/RuntimeDetector.cs

@@ -1,16 +0,0 @@
-namespace QuestPDF.Previewer;
-
-public static class RuntimeDetector
-{
-#if NET6_0_OR_GREATER
-    public static bool IsNet6OrGreater => true;
-#else
-    public static bool IsNet6OrGreater => false;
-#endif
-    
-#if NETCOREAPP3_0_OR_GREATER
-    public static bool IsNet3OrGreater => true;
-#else
-    public static bool IsNet6OrGreater => false;
-#endif
-}

QuestPDF/Previewer/TreeTraversal.cs

@@ -1,38 +0,0 @@
-using System.Collections.Generic;
-using System.Linq;
-using QuestPDF.Drawing.Proxy;
-using QuestPDF.Infrastructure;
-
-namespace QuestPDF.Previewer;
-
-internal record TreeNode<T>(T Value, ICollection<TreeNode<T>> Children);
-
-internal static class TreeTraversal
-{
-    public static TreeNode<T> ExtractProxyOfType<T>(this Element root) where T : ElementProxy
-    {
-        return Traverse(root).FirstOrDefault();
-
-        IEnumerable<TreeNode<T>> Traverse(Element element)
-        {
-            if (element is T proxy)
-            {
-                var result = new TreeNode<T>(proxy, new List<TreeNode<T>>());
-                
-                proxy
-                    .Child!
-                    .GetChildren()
-                    .SelectMany(Traverse)
-                    .ToList()
-                    .ForEach(result.Children.Add);
-
-                yield return result;
-            }
-            else
-            {
-                foreach (var treeNode in element.GetChildren().SelectMany(Traverse))
-                    yield return treeNode;
-            }
-        }
-    }
-}

QuestPDF/Previewer/UnitTestDetector.cs

@@ -1,20 +0,0 @@
-using System;
-using System.Linq;
-
-namespace QuestPDF.Previewer;
-
-internal static class UnitTestDetector
-{
-    public static bool RunningInUnitTest { get; }   
-
-    private static string[] UnitTestAssemblies = { "xunit", "nunit", "mstest" };
-    
-    static UnitTestDetector()
-    {
-        RunningInUnitTest = AppDomain
-            .CurrentDomain
-            .GetAssemblies()
-            .Select(x => x.FullName.ToLowerInvariant())
-            .Any(x => UnitTestAssemblies.Any(x.Contains));
-    }
-}

QuestPDF/Resources/Description.md

@@ -1,93 +0,0 @@
-[![Dotnet](https://img.shields.io/badge/platform-.NET-blue)](https://www.nuget.org/packages/QuestPDF/)
-[![GitHub Repo stars](https://img.shields.io/github/stars/QuestPDF/QuestPDF)](https://github.com/QuestPDF/QuestPDF/stargazers)
-[![Nuget version](https://img.shields.io/nuget/v/QuestPdf)](https://www.nuget.org/packages/QuestPDF/)
-[![Nuget download](https://img.shields.io/nuget/dt/QuestPDF)](https://www.nuget.org/packages/QuestPDF/)
-[![License](https://img.shields.io/github/license/QuestPDF/QuestPDF)](https://github.com/QuestPDF/QuestPDF/blob/main/LICENSE)
-[![Sponsor project](https://img.shields.io/badge/sponsor-project-red)](https://github.com/sponsors/QuestPDF)
-
-QuestPDF is an open-source .NET library for PDF documents generation.
-
-It offers a layout engine designed with a full paging support in mind. The document consists of many simple elements (e.g. border, background, image, text, padding, table, grid etc.) that are composed together to create more complex structures. This way, as a developer, you can understand the behavior of every element and use them with full confidence. Additionally, the document and all its elements support paging functionality. For example, an element can be moved to the next page (if there is not enough space) or even be split between pages like table's rows. All of it done with predictable and discoverable Fluent API.
-
-## Installation
-
-The library is available as a nuget package. You can install it as any other nuget package from your IDE, try to search by `QuestPDF`. You can find package details [on this webpage](https://www.nuget.org/packages/QuestPDF/).
-
-```xml
-// Package Manager
-Install-Package QuestPDF
-
-// .NET CLI
-dotnet add package QuestPDF
-
-// Package reference in .csproj file
-<PackageReference Include="QuestPDF" Version="2022.11.0" />
-```
-
-## Documentation
-
-[![Getting started tutorial]( https://img.shields.io/badge/%F0%9F%9A%80%20read-getting%20started-blue)](https://www.questpdf.com/documentation/getting-started.html)
-A short and easy to follow tutorial showing how to design an invoice document under 200 lines of code.
-
-
-[![API reference](https://img.shields.io/badge/%F0%9F%93%96%20read-API%20reference-blue)](https://www.questpdf.com/documentation/api-reference.html)
-A detailed description of behavior of all available components and how to use them with C# Fluent API.
-
-
-[![Patterns and Practices](https://img.shields.io/badge/%F0%9F%94%8D%20read-patterns%20and%20practices-blue)](https://www.questpdf.com/documentation/patterns-and-practices.html#document-metadata)
-Everything that may help you designing great reports and create reusable code that is easy to maintain.
-
-## Simplicity is the key
-
-How easy it is to start and prototype with QuestPDF? Really easy thanks to its minimal API! Please analyse the code below:
-
-```#
-using QuestPDF.Fluent;
-using QuestPDF.Helpers;
-using QuestPDF.Infrastructure;
-
-// code in your main method
-Document.Create(container =>
-{
-    container.Page(page =>
-    {
-        page.Size(PageSizes.A4);
-        page.Margin(2, Unit.Centimetre);
-        page.Background(Colors.White);
-        page.DefaultTextStyle(x => x.FontSize(20));
-        
-        page.Header()
-            .Text("Hello PDF!")
-            .SemiBold().FontSize(36).FontColor(Colors.Blue.Medium);
-        
-        page.Content()
-            .PaddingVertical(1, Unit.Centimetre)
-            .Column(x =>
-            {
-                x.Spacing(20);
-                
-                x.Item().Text(Placeholders.LoremIpsum());
-                x.Item().Image(Placeholders.Image(200, 100));
-            });
-        
-        page.Footer()
-            .AlignCenter()
-            .Text(x =>
-            {
-                x.Span("Page ");
-                x.CurrentPageNumber();
-            });
-    });
-})
-.GeneratePdf("hello.pdf");
-```
-
-And compare it to the produced PDF file:
-
-![invoice](https://raw.githubusercontent.com/QuestPDF/QuestPDF-Documentation/main/images/minimal-example-shadow.png)
-
-## Are you ready for more?
-
-The Fluent API of QuestPDF scales really well. It is easy to create and maintain even most complex documents. Read [the Getting started tutorial](https://www.questpdf.com/documentation/getting-started.html) to learn QuestPDF basics and implement an invoice under 200 lines of code. You can also investigate and play with the code from [the example repository](https://github.com/QuestPDF/example-invoice).
-
-![invoice](https://raw.githubusercontent.com/QuestPDF/QuestPDF-Documentation/main/images/invoice-small.png)

QuestPDF/Resources/ReleaseNotes.txt

@@ -1,3 +0,0 @@
-Added support for the right-to-left content direction.
-Fixed: word-wrapping algorithm does not work correctly with right-to-left languages.
-Fixed: Page.Size() API incorrectly uses Unit.Inch as default unit. Replaced with Unit.Point for consistency.

README.md

@@ -0,0 +1,92 @@
+<a href="https://www.questpdf.com/" target="_blank">
+  <img src="https://github.com/QuestPDF/example-invoice/raw/main/images/logo.svg" width="400"> 
+</a>
+
+---
+
+[![QuestPDF Homepage](https://img.shields.io/badge/Homepage-blue?style=for-the-badge)](https://www.questpdf.com)
+[![Dotnet](https://img.shields.io/badge/platform-.NET-blue?style=for-the-badge)](https://www.nuget.org/packages/QuestPDF/)
+[![GitHub Repo stars](https://img.shields.io/github/stars/QuestPDF/QuestPDF?style=for-the-badge)](https://github.com/QuestPDF/QuestPDF/stargazers)
+[![Nuget version](https://img.shields.io/nuget/v/QuestPdf?style=for-the-badge)](https://www.nuget.org/packages/QuestPDF/)
+[![Nuget download](https://img.shields.io/nuget/dt/QuestPDF?style=for-the-badge)](https://www.nuget.org/packages/QuestPDF/)
+[![License](https://img.shields.io/github/license/QuestPDF/QuestPDF?style=for-the-badge)](https://github.com/QuestPDF/QuestPDF/blob/main/LICENSE)
+
+<br />
+
+### QuestPDF is a modern open-source .NET library for PDF document generation. Offering comprehensive layout engine powered by concise and discoverable C# Fluent API.
+
+<img src="https://github.com/QuestPDF/QuestPDF-Documentation/blob/main/docs/public/previewer/animation.gif?raw=true" width="100%">
+
+<table>
+<tr>
+    <td>👨‍💻</td>
+    <td>Design PDF documents using C# and employ a code-only approach. Utilize your version control system to its fullest potential.</td>
+</tr>
+<tr>
+    <td>🧱</td>
+    <td>Compose PDF document with a range of powerful and predictable structural elements, such as text, image, border, table, and many more.</td>
+</tr>
+<tr>
+    <td>⚙️</td>
+    <td>Utilize a comprehensive layout engine, specifically designed for PDF document generation and paging support.</td>
+</tr>
+<tr>
+    <td>📖</td>
+    <td>Write code using concise and easy-to-understand C# Fluent API. Utilize IntelliSense to quickly discover available options.</td>
+</tr>
+<tr>
+    <td>🔗</td>
+    <td>Don't be limited to any proprietary scripting language or format. Follow your experience and leverage all modern C# features.</td>
+</tr>
+<tr>
+    <td>⌛</td>
+    <td>Save time thanks to a hot-reload capability, allowing real-time PDF document preview without code recompilation.</td>
+</tr>
+</table>
+
+<br />
+
+<br />
+
+## Please help by giving a star
+
+Choosing a project dependency could be difficult. We need to ensure stability and maintainability of our projects. Surveys show that GitHub stars count play an important factor when assessing library quality. 
+
+⭐ Please give this repository a star. It takes seconds and help thousands of developers! ⭐
+
+<img src="https://user-images.githubusercontent.com/9263853/224511996-9dd27a99-bef8-4d5e-bc14-9f6cfe0f5191.png" width="800" />
+
+
+## Please share with the community
+
+As an open-source project without funding, I cannot afford advertising QuestPDF in a typical way. Instead, the library relies on community interactions. Please consider sharing a post about QuestPDF and the value it provides. It really does help!
+
+[![Share on Reddit](https://img.shields.io/badge/share%20on-reddit-red?logo=reddit&style=for-the-badge)](https://reddit.com/submit?url=https://github.com/QuestPDF/QuestPDF&title=Check%20out%20QuestPDF%20%F0%9F%8E%8A%20a%20modern%20open-source%20.NET%20library%20%20for%20PDF%20document%20generation%20%F0%9F%9A%80)
+[![Share on Twitter](https://img.shields.io/badge/share%20on-twitter-03A9F4?logo=twitter&style=for-the-badge)](https://twitter.com/share?url=https://github.com/QuestPDF/QuestPDF&text=Check%20out%20QuestPDF%20%F0%9F%8E%8A%20a%20modern%20open-source%20.NET%20library%20%20for%20PDF%20document%20generation%20%F0%9F%9A%80%20%23dotnet%20%23csharp%20%23questpdf)
+[![Share on HackerNews](https://img.shields.io/badge/share%20on-hacker%20news-orange?logo=ycombinator&style=for-the-badge)](https://news.ycombinator.com/submitlink?u=https://github.com/QuestPDF/QuestPDF&t=QuestPDF%20-%20a%20modern%20open-source%20.NET%20library%20%20for%20PDF%20document%20generation)
+[![Share on Facebook](https://img.shields.io/badge/share%20on-facebook-1976D2?logo=facebook&style=for-the-badge)](https://www.facebook.com/sharer/sharer.php?u=https://github.com/QuestPDF/QuestPDF)
+
+<br />
+
+## Let's get started
+
+Begin exploring the QuestPDF library today. You are 250 lines of C# code away from creating a fully functional PDF invoice implementation.
+
+Read the Getting Started tutorial to familiarize yourself with general library architecture, important layout structures as well as to better understand helpful patterns and practices. Easily start designing your PDF documents, reports, invoices and even more.
+
+[![Getting started tutorial](https://img.shields.io/badge/%F0%9F%9A%80%20read-getting%20started-blue?style=for-the-badge)](https://www.questpdf.com/getting-started.html)
+
+<img src="https://github.com/QuestPDF/QuestPDF-Documentation/blob/main/docs/public/invoice-small.png?raw=true" width="400px">
+
+<br />
+
+## QuestPDF on JetBrains OSS Power-Ups
+
+QuestPDF was presented on one of the episodes of OSS Power-Ups hosted by JetBrains. Huge thanks for Matthias Koch and entire JetBrains team for giving me a chance to show QuestPDF. You are the best!
+
+<a href="https://www.youtube.com/watch?v=-iYvZvpLX0g">
+    <img src="https://github.com/QuestPDF/QuestPDF-Documentation/blob/main/docs/public/jetbrains-oss-powerups-youtube.png?raw=true" width="600px">
+</a>
+
+
+[![YouTube video about QuestPDF]( https://img.shields.io/badge/watch%20on-YouTube-red?logo=youtube&style=for-the-badge)](https://www.youtube.com/watch?v=-iYvZvpLX0g)

Resources/jetbrains-logo.svg

@@ -1 +0,0 @@
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SimpleApp/Program.cs

@@ -1,56 +0,0 @@
-// See https://aka.ms/new-console-template for more information
-
-using QuestPDF.Fluent;
-using QuestPDF.Helpers;
-using QuestPDF.Infrastructure;
-using QuestPDF.Previewer;
-
-QuestPDF.Settings.EnableCaching = true;
-QuestPDF.Settings.EnableDebugging = true;
-
-Document
-    .Create(container =>
-    {
-        container.Page(page =>
-        {
-            page.Size(PageSizes.A4);
-            page.Margin(2, Unit.Centimetre);
-            page.PageColor(Colors.White);
-            page.DefaultTextStyle(x => x.FontSize(20));
-                        
-            page.Header()
-                .Text("Hello PDF!")
-                .SemiBold().FontSize(36).FontColor(Colors.Blue.Medium);
-                        
-            page.Content()
-                .PaddingVertical(1, Unit.Centimetre)
-                .Column(x =>
-                {
-                    x.Spacing(20);
-                                
-                    x.Item().Text(Placeholders.LoremIpsum());
-                    x.Item().Image(Placeholders.Image(200, 100));
-
-                    foreach (var i in Enumerable.Range(0, 50))
-                    {
-                        x.Item()
-                            .Height(80).Width(100 + i * 5)
-                            .Background(Colors.Grey.Lighten3)
-                            .AlignCenter().AlignMiddle()
-                            .Text(i);
-                    }
-
-                    //x.Item().Width(1000);
-                });
-                        
-            page.Footer()
-                .AlignCenter()
-                .Text(x =>
-                {
-                    x.Span("Page ");
-                    x.CurrentPageNumber();
-                });
-        });
-    })
-    .ShowInPreviewer();
-

SimpleApp/SimpleApp.csproj

@@ -1,15 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-    <PropertyGroup>
-        <OutputType>Exe</OutputType>
-        <TargetFramework>net5.0</TargetFramework>
-        <ImplicitUsings>enable</ImplicitUsings>
-        <Nullable>enable</Nullable>
-        <LangVersion>10</LangVersion>
-    </PropertyGroup>
-
-    <ItemGroup>
-      <ProjectReference Include="..\QuestPDF\QuestPDF.csproj" />
-    </ItemGroup>
-
-</Project>

Source/QuestPDF.Examples/AlignmentExamples.cs

@@ -0,0 +1,29 @@
+using NUnit.Framework;
+using QuestPDF.Examples.Engine;
+using QuestPDF.Fluent;
+using QuestPDF.Helpers;
+
+namespace QuestPDF.Examples
+{
+    public class AlignmentExamples
+    {
+        [Test]
+        public void Example()
+        {
+            RenderingTest
+                .Create()
+                .PageSize(400, 200)
+                .ProduceImages()
+                .ShowResults()
+                .Render(container =>
+                {
+                    container
+                        .Padding(25)
+                        .Border(1)
+                        .AlignBottom()
+                        .Background(Colors.Grey.Lighten1)
+                        .Text("Test");
+                });
+        }
+    }
+}

Source/QuestPDF.Examples/DefaultTextStyleExamples.cs

@@ -1,4 +1,5 @@
 using System.Drawing;
+using System.Globalization;
 using System.Linq;
 using NUnit.Framework;
 using QuestPDF.Examples.Engine;
@@ -43,7 +44,7 @@ namespace QuestPDF.Examples
                                         .Height(50)
                                         .AlignCenter()
                                         .AlignMiddle()
-                                        .Text(i)
+                                        .Text(i.ToString(CultureInfo.InvariantCulture))
                                         .FontSize(16 + i / 4);   
                                 }
                             });

Source/QuestPDF.Examples/DynamicOptimizedExample.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using NUnit.Framework;
 using QuestPDF.Elements;
@@ -49,15 +50,15 @@ namespace QuestPDF.Examples
             {
                 container.MinimalBox().Decoration(decoration =>
                 {
-                    decoration.Header().Element(header);
+                    decoration.Before().Element(header);
 
-                    decoration.Content().Box().Stack(stack =>
+                    decoration.Content().Column(column =>
                     {
                         foreach (var row in rows)
-                            stack.Item().Element(row.Element);
+                            column.Item().Element(row.Element);
                     });
 
-                    decoration.Footer().Element(footer);
+                    decoration.After().Element(footer);
                 });
             });
 
@@ -82,15 +83,14 @@ namespace QuestPDF.Examples
                     .BorderBottom(1)
                     .BorderColor(Colors.Grey.Darken2)
                     .Padding(5)
+                    .DefaultTextStyle(TextStyle.Default.SemiBold())
                     .Row(row =>
                     {
-                        var textStyle = TextStyle.Default.SemiBold();
-
-                        row.ConstantItem(30).Text("#", textStyle);
-                        row.RelativeItem().Text("Item name", textStyle);
-                        row.ConstantItem(50).AlignRight().Text("Count", textStyle);
-                        row.ConstantItem(50).AlignRight().Text("Price", textStyle);
-                        row.ConstantItem(50).AlignRight().Text("Total", textStyle);
+                        row.ConstantItem(30).Text("#");
+                        row.RelativeItem().Text("Item name");
+                        row.ConstantItem(50).AlignRight().Text("Count");
+                        row.ConstantItem(50).AlignRight().Text("Price");
+                        row.ConstantItem(50).AlignRight().Text("Total");
                     });
             });
         }
@@ -105,7 +105,8 @@ namespace QuestPDF.Examples
                     .Width(context.AvailableSize.Width)
                     .Padding(5)
                     .AlignRight()
-                    .Text($"Subtotal: {total}$", TextStyle.Default.Size(14).SemiBold());
+                    .DefaultTextStyle(TextStyle.Default.FontSize(14).SemiBold())
+                    .Text($"Subtotal: {total}$");
             });
         }
         
@@ -126,9 +127,9 @@ namespace QuestPDF.Examples
                         .Padding(5)
                         .Row(row =>
                         {
-                            row.ConstantItem(30).Text(index + 1);
+                            row.ConstantItem(30).Text((index + 1).ToString(CultureInfo.InvariantCulture));
                             row.RelativeItem().Text(item.ItemName);
-                            row.ConstantItem(50).AlignRight().Text(item.Count);
+                            row.ConstantItem(50).AlignRight().Text(item.Count.ToString(CultureInfo.InvariantCulture));
                             row.ConstantItem(50).AlignRight().Text($"{item.Price}$");
                             row.ConstantItem(50).AlignRight().Text($"{item.Count*item.Price}$");
                         });
@@ -164,7 +165,7 @@ namespace QuestPDF.Examples
                         .Decoration(decoration =>
                         {
                             decoration
-                                .Header()
+                                .Before()
                                 .PaddingBottom(5)
                                 .Text(text =>
                                 {

Source/QuestPDF.Examples/DynamicSimpleTableExample.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Drawing;
+using System.Globalization;
 using System.Linq;
 using NUnit.Framework;
 using QuestPDF.Elements;
@@ -96,9 +97,9 @@ namespace QuestPDF.Examples
                         {
                             var item = Items[index];
                                 
-                            table.Cell().Element(Style).Text(index + 1);
+                            table.Cell().Element(Style).Text((index + 1).ToString(CultureInfo.InvariantCulture));
                             table.Cell().Element(Style).Text(item.ItemName);
-                            table.Cell().Element(Style).AlignRight().Text(item.Count);
+                            table.Cell().Element(Style).AlignRight().Text(item.Count.ToString(CultureInfo.InvariantCulture));
                             table.Cell().Element(Style).AlignRight().Text($"{item.Price}$");
                             table.Cell().Element(Style).AlignRight().Text($"{item.Count*item.Price}$");
 

Source/QuestPDF.Examples/InlinedExamples.cs

@@ -120,5 +120,42 @@ namespace QuestPDF.Examples
                     .Background(Placeholders.BackgroundColor());
             }
         }
+        
+        [Test]
+        public void RepeatingInlinedInHeader_Test()
+        {
+            RenderingTest
+                .Create()
+                .ProduceImages()
+                .ShowResults()
+                .RenderDocument(document =>
+                {
+                    document.Page(page =>
+                    {
+                        page.Size(PageSizes.A4);
+                        page.Margin(1, Unit.Inch);
+                        page.PageColor(Colors.White);
+                        
+                        page.Header()
+                            .Inlined(inlined =>
+                            {
+                                inlined.Spacing(10);
+                                
+                                foreach (var i in Enumerable.Range(5, 5))
+                                    inlined.Item().Width(i * 10).Height(20).Background(Colors.Red.Medium);
+                            });
+                        
+                        page.Content()
+                            .PaddingVertical(20)
+                            .Column(column =>
+                            {
+                                column.Spacing(25);
+                                
+                                foreach (var i in Enumerable.Range(10, 20))
+                                    column.Item().Width(i * 10).Height(50).Background(Colors.Grey.Lighten2);
+                            });
+                    });
+                });
+        }
     }
 }

Source/QuestPDF.Examples/LoremPicsumExample.cs

@@ -19,10 +19,12 @@ namespace QuestPDF.Examples
         {
             var url = "https://picsum.photos/300/200";
 
-            if(Greyscale)
+            if (Greyscale)
                 url += "?grayscale";
 
             using var client = new WebClient();
+            client.Headers.Add("user-agent", "QuestPDF/1.0 Unit Testing");
+            
             var response = client.DownloadData(url);
             container.Image(response);
         }
@@ -59,4 +61,4 @@ namespace QuestPDF.Examples
                 });
         }
     }
-}
+}

Source/QuestPDF.Examples/QuestPDF.Examples.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>netcoreapp3.1</TargetFramework>
         <IsPackable>false</IsPackable>
     </PropertyGroup>
 
@@ -9,7 +9,7 @@
         <PackageReference Include="BenchmarkDotNet" Version="0.13.2" />
         <PackageReference Include="microcharts" Version="0.9.5.9" />
         <PackageReference Include="nunit" Version="3.13.3" />
-        <PackageReference Include="NUnit3TestAdapter" Version="4.3.0" />
+        <PackageReference Include="NUnit3TestAdapter" Version="4.3.1" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.0" />
         <PackageReference Include="SkiaSharp" Version="2.88.3" />
         <PackageReference Include="Svg.Skia" Version="0.5.18" />

Source/QuestPDF.Examples/TableExamples.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
 using System.Drawing;
+using System.Globalization;
 using System.Linq;
 using NUnit.Framework;
 using QuestPDF.Drawing;
@@ -299,17 +300,18 @@ namespace QuestPDF.Examples
                                 columns.RelativeColumn();
                                 columns.RelativeColumn();
                                 columns.RelativeColumn();
+                                columns.RelativeColumn();
+                                columns.RelativeColumn();
                             });
 
-                            table.Cell().RowSpan(4).Element(Block).Text("1");
+                            var image = Placeholders.Image(400, 300);
                             
-                            table.Cell().RowSpan(2).Element(Block).Text("2");
-                            table.Cell().RowSpan(1).Element(Block).Text("3");
-                            table.Cell().RowSpan(1).Element(Block).Text("4");
-                            
-                            table.Cell().RowSpan(2).Element(Block).Text("5");
-                            table.Cell().RowSpan(1).Element(Block).Text("6");
-                            table.Cell().RowSpan(1).Element(Block).Text("7");
+                            table.Cell().Image(image);
+                            table.Cell().Image(image);
+                            table.Cell().Image(image);
+                            table.Cell().Image(image);
+                            table.Cell().Image(image);
+                            table.Cell().Image(image);
                         });
                 });
         }
@@ -389,12 +391,12 @@ namespace QuestPDF.Examples
                                 table.Cell().Element(CellStyle).ExtendHorizontal().AlignLeft().Text(page.name);
                                         
                                 // inches
-                                table.Cell().Element(CellStyle).Text(page.width);
-                                table.Cell().Element(CellStyle).Text(page.height);
+                                table.Cell().Element(CellStyle).Text(page.width.ToString(CultureInfo.InvariantCulture));
+                                table.Cell().Element(CellStyle).Text(page.height.ToString(CultureInfo.InvariantCulture));
                                         
                                 // points
-                                table.Cell().Element(CellStyle).Text(page.width * inchesToPoints);
-                                table.Cell().Element(CellStyle).Text(page.height * inchesToPoints);
+                                table.Cell().Element(CellStyle).Text((page.width * inchesToPoints).ToString(CultureInfo.InvariantCulture));
+                                table.Cell().Element(CellStyle).Text((page.height * inchesToPoints).ToString(CultureInfo.InvariantCulture));
                                         
                                 IContainer CellStyle(IContainer container) => DefaultCellStyle(container, Colors.White); 
                             }

Source/QuestPDF.Examples/TextExamples.cs

@@ -7,6 +7,7 @@ using QuestPDF.Examples.Engine;
 using QuestPDF.Fluent;
 using QuestPDF.Helpers;
 using QuestPDF.Infrastructure;
+using SkiaSharp;
 
 namespace QuestPDF.Examples
 {
@@ -122,7 +123,132 @@ namespace QuestPDF.Examples
                         });
                 });
         }
-        
+
+        [Test]
+        public void LetterSpacing()
+        {
+            RenderingTest
+                .Create()
+                .PageSize(500, 700)
+                .ProduceImages()
+                .ShowResults()
+                .Render(container =>
+                {
+                    container
+                        .Padding(20)
+                        .Column(column =>
+                        {
+                            var letterSpacing = new[] { -0.1f, 0f, 0.2f };
+                            var paragraph = Placeholders.Sentence().ToUpper();
+
+                            foreach (var spacing in letterSpacing)
+                            {
+                                column
+                                    .Item()
+                                    .Border(1)
+                                    .Padding(10)
+                                    .Column(nestedColumn =>
+                                    {
+                                        nestedColumn.Item()
+                                                    .Text(paragraph)
+                                                    .FontSize(16)
+                                                    .LetterSpacing(spacing);
+
+                                        nestedColumn.Item()
+                                                    .Text($"Letter spacing of {spacing} em")
+                                                    .FontSize(10)
+                                                    .Italic()
+                                                    .FontColor(Colors.Blue.Medium);
+                                    });
+                                
+                            }
+                        });
+                });
+        }
+
+        [Test]
+        public void LetterSpacing_Arabic()
+        {
+            RenderingTest
+                .Create()
+                .PageSize(500, 700)
+                .ProduceImages()
+                .ShowResults()
+                .Render(container =>
+                {
+                    container
+                        .Padding(50)
+                        .Column(column =>
+                        {
+                            var letterSpacing = new[] { -0.1f, 0f, 0.2f };
+                            var paragraph = "ينا الألم. في بعض الأحيان ونظراً للالتزامات التي يفرضها علينا";
+                            foreach (var spacing in letterSpacing)
+                            {
+                                column
+                                   .Item()
+                                   .Border(1)
+                                   .Padding(10)
+                                   .Column(nestedColumn =>
+                                   {
+                                       nestedColumn.Item()
+                                                   .Text(paragraph)
+                                                   .FontSize(16)
+                                                   .FontFamily(Fonts.Calibri)
+                                                   .LetterSpacing(spacing);
+
+                                       nestedColumn.Item()
+                                                   .Text($"Letter spacing of {spacing} em")
+                                                   .FontSize(10)
+                                                   .Italic()
+                                                   .FontColor(Colors.Blue.Medium);
+                                   });
+                            }
+                        });
+                });
+        }
+
+
+        [Test]
+        public void LetterSpacing_Unicode()
+        {
+            RenderingTest
+                .Create()
+                .PageSize(500, 700)
+                .ProduceImages()
+                .ShowResults()
+                .Render(container =>
+                {
+                    container
+                        .Padding(50)
+                        .Column(column =>
+                        {
+                            var letterSpacing = new[] { 0f, 0.5f };
+                            
+                            
+                            
+                            var paragraph = "Ţ̴̡̧̤̮̺̤̗͎̱̹͙͎͖͂̿̓́̉̊̀̍͜h̵̞̘͇̾̎̏̅į̵̹̖͔͉̰̎̉̄̐̏͑͂̅̃̃͘͝s̷͓͉̭̭̯̬̥̻̰̩̦̑̀̀͌́̒̍̒̌̇͛̀͛́̎ ̷̡̡̟͕̳̺̝̼͇͔̬̟̖͍̈́̽͜͝͝i̶͔͚̟̊̐͛́͛̄̌ṡ̸̡̤̪͙͍̥͙̟̼̝̰̥͈̿̓̄̿̓͠ ̶̢̦̙͍̯̖̱̰̯͕͔͎̯̝̎͑t̸͖̲̱̼̎͐̎̉̾̎̾̌̅̔̏͘ȩ̶̝̫̙͓̙̣̔̀̌̔̋̂̑̈́̏̀̈͘̕͜͝s̸̫̝̮̻̼͐̅̄̎̎̑͝ț̷̨̢̨̻͈̮̞̆͗̓͊̃̌͂̑̉̕̕͜͝͝";
+
+                            
+                            
+                            foreach (var spacing in letterSpacing)
+                            {
+                                column.Item()
+                                      .Text($"Letter spacing of {spacing} em")
+                                      .FontSize(10)
+                                      .Italic()
+                                      .FontColor(Colors.Blue.Medium);
+
+                                column.Item()
+                                      .PaddingVertical(50)
+                                      .Text(paragraph)
+                                      .FontSize(16)
+                                      .FontFamily(Fonts.Calibri)
+                                      .LetterSpacing(spacing);
+                            }
+                        });
+                });
+        }
+
         [Test]
         public void SuperscriptSubscript_Simple()
         {
@@ -523,7 +649,7 @@ namespace QuestPDF.Examples
 
                         page.Content().Column(column =>
                         {
-                            column.Item().Text(null);
+                            column.Item().Text((string) null);
 
                             column.Item().Text(text =>
                             {
@@ -555,7 +681,7 @@ namespace QuestPDF.Examples
 
                         page.Content().Column(column =>
                         {
-                            column.Item().Text(null);
+                            column.Item().Text((string) null);
 
                             column.Item().Text(text =>
                             {
@@ -786,5 +912,132 @@ namespace QuestPDF.Examples
                         });
                 });
         }
+        
+        [Test]
+        public void DetectSpanPositionExample()
+        {
+            RenderingTest
+                .Create()
+                .PageSize(new PageSize(650, 800))
+                .ProduceImages()
+                .ShowResults()
+                .Render(container =>
+                {
+                    var fontSize = 20;
+                    
+                    var paint = new SKPaint
+                    {
+                        Color = SKColors.Red,
+                        TextSize = fontSize
+                    };
+                    
+                    var fontMetrics = paint.FontMetrics;
+
+                    var start = 0f;
+                    var end = 0f;
+                    
+                    // corner case: what if text is paged? clamp start and end?
+
+                    container
+                        .Padding(25)
+                        .DefaultTextStyle(x => x.FontSize(fontSize).FontFamily("Calibri"))
+                        .Layers(layers =>
+                        {
+                            layers.PrimaryLayer().Text(text =>
+                            {
+                                text.Span(Placeholders.Paragraph());
+                                text.Span(" - ");
+                                
+                                // record start
+                                text.Element().Width(0).Height(0)
+                                    .Canvas((canvas, size) => start = canvas.TotalMatrix.TransY / canvas.TotalMatrix.ScaleY);
+                                
+                                text.Span(Placeholders.LoremIpsum()).BackgroundColor(Colors.Red.Lighten4);
+                                
+                                // record end
+                                text.Element().Width(0).Height(0)
+                                    .Canvas((canvas, size) => end = canvas.TotalMatrix.TransY / canvas.TotalMatrix.ScaleY);
+                            
+                                text.Span(" - ");
+                                text.Span(Placeholders.Paragraph());
+                            });
+                            
+                            layers.Layer().Canvas((canvas, size) =>
+                            {
+                                canvas.Save();
+      
+                                canvas.Translate(-canvas.TotalMatrix.TransX / canvas.TotalMatrix.ScaleX, -canvas.TotalMatrix.TransY / canvas.TotalMatrix.ScaleY);
+                                canvas.DrawRect(10, start + fontMetrics.Ascent, 5, end - start + (fontMetrics.Bottom - fontMetrics.Ascent), paint);
+                                
+                                canvas.Restore();
+                            });
+                        });
+                });
+        }
+        
+        [Test]
+        public void InconsistentLineHeightWhenUsingNewLineTest()
+        {
+            RenderingTest
+                .Create()
+                .PageSize(PageSizes.A4)
+                .ProduceImages()
+                .ShowResults()
+                .Render(container =>
+                {
+                    container
+                        .Padding(20)
+                        .Background(Colors.Grey.Lighten4)
+                        .Text(text =>
+                        {
+                            text.DefaultTextStyle(x => x.FontSize(16));
+                            
+                            text.Line(Placeholders.Paragraph());
+                            text.Line("");
+                            text.Line(Placeholders.Paragraph());
+                            
+                            text.Line(Placeholders.Label()).FontSize(48);
+                            
+                            text.Line(Placeholders.Paragraph());
+                            text.Line("");
+                            text.Line(Placeholders.Paragraph());
+                        });
+                });
+        }
+        
+        [Test]
+         public void FontFallback_Nested()
+        {
+            RenderingTest
+                .Create()
+                .ProduceImages()
+                .ShowResults()
+                .RenderDocument(container =>
+                {
+                    container.Page(page =>
+                    {
+                        page.Margin(50);
+                        page.PageColor(Colors.White);
+                        page.Size(PageSizes.A5.Landscape());
+                        
+                        page.DefaultTextStyle(x => x
+                            .FontSize(24)
+                            .Bold()
+                            .FontFamily("Times New Roman")
+                            .Fallback(y => y
+                                .FontFamily("Microsoft YaHei")
+                                .Underline()
+                                .BackgroundColor(Colors.Red.Lighten2)));
+
+                        page.Content().Text(text =>
+                        {
+                            text.Line("Default times new roman 中文文本 text.");
+                            text.Line("Normal weight and green 中文文本 text.").NormalWeight().BackgroundColor(Colors.Green.Lighten2);
+                            text.Line("Strikethrough without underline 中文文本 text.").Strikethrough().Underline(false);
+                            text.Line("Lato italic 中文文本 text.").FontFamily("Lato").Italic();
+                        });
+                    });
+                });
+        }
     }
 }

Source/QuestPDF.Previewer.Examples/Program.cs

@@ -0,0 +1,62 @@
+using QuestPDF.Fluent;
+using QuestPDF.Helpers;
+using QuestPDF.Infrastructure;
+using QuestPDF.Previewer;
+using QuestPDF.ReportSample;
+using QuestPDF.ReportSample.Layouts;
+
+//ImagePlaceholder.Solid = true;
+
+// var model = DataSource.GetReport();
+// var report = new StandardReport(model);
+// report.ShowInPreviewer();
+//
+// return;
+
+Document
+    .Create(container =>
+    {
+        container.Page(page =>
+        {
+            page.Size(PageSizes.A4);
+            page.Margin(2, Unit.Centimetre);
+            page.PageColor(Colors.White);
+            page.DefaultTextStyle(x => x.FontSize(20));
+
+            page.Header()
+                .Text("Hot Reload!")
+                .SemiBold().FontSize(36).FontColor(Colors.Blue.Darken2);
+
+            page.Content()
+                .PaddingVertical(1, Unit.Centimetre)
+                .Column(x =>
+                {
+                    x.Spacing(20);
+
+                    x.Item().Table(t =>
+                    {
+                        t.ColumnsDefinition(c =>
+                        {
+                            c.RelativeColumn();
+                            c.RelativeColumn(3);
+                        });
+
+                        t.Cell().Border(1).Background(Colors.Grey.Lighten3).Padding(5).Text("Visual Studio");
+                        t.Cell().Border(1).Padding(5).Text("Start in debug mode with 'Hot Reload on Save' enabled.");
+                        t.Cell().Border(1).Background(Colors.Grey.Lighten3).Padding(5).Text("Command line");
+                        t.Cell().Border(1).Padding(5).Text("Run 'dotnet watch'.");
+                    });
+
+                    x.Item().Text("Modify this line and the preview should show your changes instantly.");
+                });
+
+            page.Footer()
+                .AlignCenter()
+                .Text(x =>
+                {
+                    x.Span("Page ");
+                    x.CurrentPageNumber();
+                });
+        });
+    })
+    .ShowInPreviewer();

Source/QuestPDF.Previewer.Examples/QuestPDF.Previewer.Examples.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\QuestPDF.ReportSample\QuestPDF.ReportSample.csproj" />
+    <ProjectReference Include="..\QuestPDF\QuestPDF.csproj" />
+  </ItemGroup>
+
+</Project>

Source/QuestPDF.Previewer/CommunicationService.cs

@@ -0,0 +1,79 @@
+using System.Text.Json;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using SkiaSharp;
+
+namespace QuestPDF.Previewer;
+
+class CommunicationService
+{
+    public static CommunicationService Instance { get; } = new ();
+    
+    public event Action<ICollection<PreviewPage>>? OnDocumentRefreshed;
+
+    private WebApplication? Application { get; set; }
+
+    private readonly JsonSerializerOptions JsonSerializerOptions = new()
+    {
+        PropertyNameCaseInsensitive = true
+    };
+
+    private CommunicationService()
+    {
+        
+    }
+    
+    public Task Start(int port)
+    {
+        var builder = WebApplication.CreateBuilder();
+        builder.Services.AddLogging(x => x.ClearProviders());
+        builder.WebHost.UseKestrel(options => options.Limits.MaxRequestBodySize = null);
+        Application = builder.Build();
+
+        Application.MapGet("ping", HandlePing);
+        Application.MapGet("version", HandleVersion);
+        Application.MapPost("update/preview", HandleUpdatePreview);
+            
+        return Application.RunAsync($"http://localhost:{port}/");
+    }
+
+    public async Task Stop()
+    {
+        await Application.StopAsync();
+        await Application.DisposeAsync();
+    }
+
+    private async Task<IResult> HandlePing()
+    {
+        return OnDocumentRefreshed == null 
+            ? Results.StatusCode(StatusCodes.Status503ServiceUnavailable) 
+            : Results.Ok();
+    }
+    
+    private async Task<IResult> HandleVersion()
+    {
+        return Results.Json(GetType().Assembly.GetName().Version);
+    }
+    
+    private async Task<IResult> HandleUpdatePreview(HttpRequest request)
+    {
+        var command = JsonSerializer.Deserialize<DocumentSnapshot>(request.Form["command"], JsonSerializerOptions);
+
+        var pages = command
+            .Pages
+            .Select(page =>
+            {
+                using var stream = request.Form.Files[page.Id].OpenReadStream();
+                var picture = SKPicture.Deserialize(stream);
+                        
+                return new PreviewPage(picture, page.Width, page.Height);
+            })
+            .ToList();
+
+        Task.Run(() => OnDocumentRefreshed(pages));
+        return Results.Ok();
+    }
+}

Source/QuestPDF.Previewer/Helpers.cs

@@ -0,0 +1,20 @@
+using SkiaSharp;
+
+namespace QuestPDF.Previewer;
+
+class Helpers
+{
+    public static void GeneratePdfFromDocumentSnapshots(string filePath, ICollection<PreviewPage> pages)
+    {
+        using var stream = File.Create(filePath);
+            
+        using var document = SKDocument.CreatePdf(stream);
+            
+        foreach (var page in pages)
+        {
+            using var canvas = document.BeginPage(page.Width, page.Height);
+            canvas.DrawPicture(page.Picture);
+            document.EndPage();
+        }
+    }
+}

Source/QuestPDF.Previewer/InteractiveCanvas.cs

@@ -0,0 +1,202 @@
+using Avalonia;
+using Avalonia.Platform;
+using Avalonia.Rendering.SceneGraph;
+using Avalonia.Skia;
+using SkiaSharp;
+
+namespace QuestPDF.Previewer;
+
+class InteractiveCanvas : ICustomDrawOperation
+{
+    public Rect Bounds { get; set; }
+    public ICollection<PreviewPage> Pages { get; set; }
+
+    private float Width => (float)Bounds.Width;
+    private float Height => (float)Bounds.Height;
+
+    public float Scale { get; private set; } = 1;
+    public float TranslateX { get; set; }
+    public float TranslateY { get; set; }
+
+    private const float MinScale = 0.1f;
+    private const float MaxScale = 10f;
+
+    private const float PageSpacing = 25f;
+    private const float SafeZone = 25f;
+
+    public float TotalPagesHeight => Pages.Sum(x => x.Height) + (Pages.Count - 1) * PageSpacing;
+    public float TotalHeight => TotalPagesHeight + SafeZone * 2 / Scale;
+    public float MaxWidth => Pages.Any() ? Pages.Max(x => x.Width) : 0;
+    
+    public float MaxTranslateY => TotalHeight - Height / Scale;
+
+    public float ScrollPercentY
+    {
+        get
+        {
+            return TranslateY / MaxTranslateY;
+        }
+        set
+        {
+            TranslateY = value * MaxTranslateY;
+        }
+    }
+
+    public float ScrollViewportSizeY
+    {
+        get
+        {
+            var viewPortSize = Height / Scale / TotalHeight;
+            return Math.Clamp(viewPortSize, 0, 1);
+        }
+    }
+
+    #region transformations
+    
+    private void LimitScale()
+    {
+        Scale = Math.Max(Scale, MinScale);
+        Scale = Math.Min(Scale, MaxScale);
+    }
+    
+    private void LimitTranslate()
+    {
+        if (TotalPagesHeight > Height / Scale)
+        {
+            TranslateY = Math.Min(TranslateY, MaxTranslateY);
+            TranslateY = Math.Max(TranslateY, 0);
+        }
+        else
+        {
+            TranslateY = (TotalPagesHeight - Height / Scale) / 2;
+        }
+
+        if (Width / Scale < MaxWidth)
+        {
+            var maxTranslateX = (Width / 2 - SafeZone) / Scale - MaxWidth / 2;
+
+            TranslateX = Math.Min(TranslateX, -maxTranslateX);
+            TranslateX = Math.Max(TranslateX, maxTranslateX);
+        }
+        else
+        {
+            TranslateX = 0;
+        }
+    }
+
+    public void TranslateWithCurrentScale(float x, float y)
+    {
+        TranslateX += x / Scale;
+        TranslateY += y / Scale;
+
+        LimitTranslate();
+    }
+    
+    public void ZoomToPoint(float x, float y, float factor)
+    {
+        var oldScale = Scale;
+        Scale *= factor;
+                
+        LimitScale();
+   
+        TranslateX -= x / Scale - x / oldScale;
+        TranslateY -= y / Scale - y / oldScale;
+
+        LimitTranslate();
+    }
+    
+    #endregion
+    
+    #region rendering
+    
+    public void Render(IDrawingContextImpl context)
+    {
+        if (Pages.Count <= 0)
+            return;
+
+        LimitScale();
+        LimitTranslate();
+        
+        var canvas = (context as ISkiaDrawingContextImpl)?.SkCanvas;
+        
+        if (canvas == null)
+            throw new InvalidOperationException($"Context needs to be ISkiaDrawingContextImpl but got {nameof(context)}");
+
+        var originalMatrix = canvas.TotalMatrix;
+
+        canvas.Translate(Width / 2, 0);
+        
+        canvas.Scale(Scale);
+        canvas.Translate(TranslateX, -TranslateY + SafeZone / Scale);
+        
+        foreach (var page in Pages)
+        {
+            canvas.Translate(-page.Width / 2f, 0);
+            DrawBlankPage(canvas, page.Width, page.Height);
+            canvas.DrawPicture(page.Picture);
+            canvas.Translate(page.Width / 2f, page.Height + PageSpacing);
+        }
+
+        canvas.SetMatrix(originalMatrix);
+        DrawInnerGradient(canvas);
+    }
+    
+    public void Dispose() { }
+    public bool Equals(ICustomDrawOperation? other) => false;
+    public bool HitTest(Point p) => true;
+
+    #endregion
+    
+    #region blank page
+
+    private static SKPaint BlankPagePaint = new SKPaint
+    {
+        Color = SKColors.White
+    };
+    
+    private static SKPaint BlankPageShadowPaint = new SKPaint
+    {
+        ImageFilter = SKImageFilter.CreateBlendMode(
+            SKBlendMode.Overlay, 
+            SKImageFilter.CreateDropShadowOnly(0, 6, 6, 6, SKColors.Black.WithAlpha(64)),
+            SKImageFilter.CreateDropShadowOnly(0, 10, 14, 14, SKColors.Black.WithAlpha(32)))
+    };
+    
+    private void DrawBlankPage(SKCanvas canvas, float width, float height)
+    {
+        canvas.DrawRect(0, 0, width, height, BlankPageShadowPaint);
+        canvas.DrawRect(0, 0, width, height, BlankPagePaint);
+    }
+    
+    #endregion
+
+    #region inner viewport gradient
+
+    private const int InnerGradientSize = (int)SafeZone;
+    private static readonly SKColor InnerGradientColor = SKColor.Parse("#666");
+    
+    private void DrawInnerGradient(SKCanvas canvas)
+    {
+        // gamma correction
+        var colors = Enumerable
+            .Range(0, InnerGradientSize)
+            .Select(x => 1f - x / (float) InnerGradientSize)
+            .Select(x => Math.Pow(x, 2f))
+            .Select(x => (byte)(x * 255))
+            .Select(x => InnerGradientColor.WithAlpha(x))
+            .ToArray();
+        
+        using var fogPaint = new SKPaint
+        {
+            Shader = SKShader.CreateLinearGradient(
+                new SKPoint(0, 0),
+                new SKPoint(0, InnerGradientSize), 
+                colors,
+                SKShaderTileMode.Clamp)
+        };
+        
+        canvas.DrawRect(0, 0, Width, InnerGradientSize, fogPaint);
+    }
+
+    #endregion
+}

Source/QuestPDF.Previewer/PreviewPage.cs

@@ -0,0 +1,6 @@
+using SkiaSharp;
+
+namespace QuestPDF.Previewer
+{
+    record PreviewPage(SKPicture Picture, float Width, float Height);
+}

Source/QuestPDF.Previewer/PreviewerApp.axaml

@@ -0,0 +1,8 @@
+<Application x:Class="QuestPDF.Previewer.PreviewerApp"
+             xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             Name="QuestPDF Document Preview">
+	<Application.Styles>
+		<FluentTheme Mode="Dark" />
+	</Application.Styles>
+</Application>

Source/QuestPDF.Previewer/PreviewerApp.axaml.cs

@@ -0,0 +1,27 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+
+namespace QuestPDF.Previewer
+{
+    internal class PreviewerApp : Application
+    {
+        public override void Initialize()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+
+        public override void OnFrameworkInitializationCompleted()
+        {
+            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                desktop.MainWindow = new PreviewerWindow()
+                {
+                    DataContext = new PreviewerWindowViewModel()
+                };
+            }
+            
+            base.OnFrameworkInitializationCompleted();
+        }
+    }
+}

Source/QuestPDF.Previewer/PreviewerControl.cs

@@ -0,0 +1,118 @@
+using System.Collections.ObjectModel;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Media;
+
+namespace QuestPDF.Previewer
+{
+    class PreviewerControl : Control
+    {
+        private InteractiveCanvas InteractiveCanvas { get; set; } = new ();
+        
+        public static readonly StyledProperty<ObservableCollection<PreviewPage>> PagesProperty =
+            AvaloniaProperty.Register<PreviewerControl, ObservableCollection<PreviewPage>>(nameof(Pages));
+        
+        public ObservableCollection<PreviewPage>? Pages
+        {
+            get => GetValue(PagesProperty);
+            set => SetValue(PagesProperty, value);
+        }
+
+        public static readonly StyledProperty<float> CurrentScrollProperty = AvaloniaProperty.Register<PreviewerControl, float>(nameof(CurrentScroll));
+        
+        public float CurrentScroll
+        {
+            get => GetValue(CurrentScrollProperty);
+            set => SetValue(CurrentScrollProperty, value);
+        }
+        
+        public static readonly StyledProperty<float> ScrollViewportSizeProperty = AvaloniaProperty.Register<PreviewerControl, float>(nameof(ScrollViewportSize));
+        
+        public float ScrollViewportSize
+        {
+            get => GetValue(ScrollViewportSizeProperty);
+            set => SetValue(ScrollViewportSizeProperty, value);
+        }
+        
+        public PreviewerControl()
+        {
+            PagesProperty.Changed.Subscribe(x =>
+            {
+                InteractiveCanvas.Pages = x.NewValue.Value;
+                InvalidateVisual();
+            });
+
+            CurrentScrollProperty.Changed.Subscribe(x =>
+            {
+                InteractiveCanvas.ScrollPercentY = x.NewValue.Value;
+                InvalidateVisual();
+            });
+
+            ClipToBounds = true;
+        }
+        
+        protected override void OnPointerWheelChanged(PointerWheelEventArgs e)
+        {
+            base.OnPointerWheelChanged(e);
+
+            if ((e.KeyModifiers & KeyModifiers.Control) != 0)
+            {
+                var scaleFactor = 1 + e.Delta.Y / 10f;
+                var point = new Point(Bounds.Center.X, Bounds.Top) - e.GetPosition(this);
+                
+                InteractiveCanvas.ZoomToPoint((float)point.X, -(float)point.Y, (float)scaleFactor);
+            }
+                
+            if (e.KeyModifiers == KeyModifiers.None)
+            {
+                var translation = (float)e.Delta.Y * 25;
+                InteractiveCanvas.TranslateWithCurrentScale(0, -translation);
+            }
+                
+            InvalidateVisual();
+        }
+
+        private bool IsMousePressed { get; set; }
+        private Vector MousePosition { get; set; }
+        
+        protected override void OnPointerMoved(PointerEventArgs e)
+        {
+            base.OnPointerMoved(e);
+
+            if (IsMousePressed)
+            {
+                var currentPosition = e.GetPosition(this);
+                var translation = currentPosition - MousePosition;
+                InteractiveCanvas.TranslateWithCurrentScale((float)translation.X, -(float)translation.Y);
+                
+                InvalidateVisual();
+            }
+
+            MousePosition = e.GetPosition(this);
+        }
+        
+        protected override void OnPointerPressed(PointerPressedEventArgs e)
+        {
+            base.OnPointerPressed(e);
+            IsMousePressed = true;
+        }
+
+        protected override void OnPointerReleased(PointerReleasedEventArgs e)
+        {
+            base.OnPointerReleased(e);
+            IsMousePressed = false;
+        }
+
+        public override void Render(DrawingContext context)
+        {
+            CurrentScroll = InteractiveCanvas.ScrollPercentY;
+            ScrollViewportSize = InteractiveCanvas.ScrollViewportSizeY;
+    
+            InteractiveCanvas.Bounds = new Rect(0, 0, Bounds.Width, Bounds.Height);
+
+            context.Custom(InteractiveCanvas);
+            base.Render(context);
+        }
+    }
+}

Source/QuestPDF.Previewer/PreviewerRefreshCommand.cs

@@ -0,0 +1,18 @@
+using SkiaSharp;
+
+namespace QuestPDF.Previewer;
+
+internal class DocumentSnapshot
+{
+    public ICollection<PageSnapshot> Pages { get; set; }
+
+    public class PageSnapshot
+    {
+        public string Id { get; set; }
+        
+        public float Width { get; set; }
+        public float Height { get; set; }
+        
+        public SKPicture Picture { get; set; }
+    }
+}

Source/QuestPDF.Previewer/PreviewerWindow.axaml

@@ -0,0 +1,97 @@
+<Window xmlns="https://github.com/avaloniaui"
+		xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+		xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+		xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+		xmlns:previewer="clr-namespace:QuestPDF.Previewer"
+		mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+		x:Class="QuestPDF.Previewer.PreviewerWindow"
+		x:DataType="previewer:PreviewerWindowViewModel"
+		x:CompileBindings="True"
+		WindowStartupLocation="CenterScreen"
+		ExtendClientAreaToDecorationsHint="true"
+		ExtendClientAreaTitleBarHeightHint="-1"
+		Background="#666"
+		Icon="/Resources/Logo.png"
+		UseLayoutRounding="True"
+		Title="QuestPDF Document Preview">
+	
+	<Window.Styles>
+		<Style Selector="Button.actions">
+			<Setter Property="VerticalAlignment" Value="Bottom"/>
+			<Setter Property="HorizontalAlignment" Value="Left"/>
+			<Setter Property="Padding" Value="10"/>
+			<Setter Property="CornerRadius" Value="100"/>
+			<Setter Property="Background" Value="#888"/>
+		</Style>
+		
+		<Style Selector="Button:pointerover /template/ ContentPresenter">
+			<Setter Property="Background" Value="#999"/>
+		</Style>
+	</Window.Styles>
+
+	<Panel>
+		<Grid>
+			<Grid.RowDefinitions>
+				<RowDefinition Height="32" />
+				<RowDefinition Height="*" />
+			</Grid.RowDefinitions>
+
+			<Grid.ColumnDefinitions>
+				<ColumnDefinition Width="*" />
+				<ColumnDefinition Width="Auto" />
+			</Grid.ColumnDefinitions>
+			
+			<TextBlock Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="2"
+			           VerticalAlignment="Center" HorizontalAlignment="Center" 
+			           TextAlignment="Center" Text="QuestPDF Previewer" FontSize="14" Foreground="#DFFF" FontWeight="Regular" IsHitTestVisible="False" />
+			
+			<previewer:PreviewerControl Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2"
+			                            HorizontalAlignment="Stretch" 
+			                            VerticalAlignment="Stretch"
+			                            CurrentScroll="{Binding CurrentScroll, Mode=TwoWay}"
+			                            ScrollViewportSize="{Binding ScrollViewportSize, Mode=OneWayToSource}"
+			                            Pages="{Binding Pages, Mode=OneWay}" />
+			
+			<StackPanel Grid.Row="1" Grid.Column="0" Orientation="Vertical" VerticalAlignment="Bottom" Spacing="16" Margin="32">
+				<Button Classes="actions"
+				        Command="{Binding ShowPdfCommand, Mode=OneTime}"
+				        IsVisible="{Binding !!Pages.Count}"
+				        ToolTip.Tip="Generates PDF file and shows it in the default browser. Useful for testing compatibility and interactive links.">
+					<Viewbox Width="24" Height="24">
+						<Canvas Width="24" Height="24">
+							<Path Fill="White" Data="M14,2H6A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H13C12.59,21.75 12.2,21.44 11.86,21.1C11.53,20.77 11.25,20.4 11,20H6V4H13V9H18V10.18C18.71,10.34 19.39,10.61 20,11V8L14,2M20.31,18.9C21.64,16.79 21,14 18.91,12.68C16.8,11.35 14,12 12.69,14.08C11.35,16.19 12,18.97 14.09,20.3C15.55,21.23 17.41,21.23 18.88,20.32L22,23.39L23.39,22L20.31,18.9M16.5,19A2.5,2.5 0 0,1 14,16.5A2.5,2.5 0 0,1 16.5,14A2.5,2.5 0 0,1 19,16.5A2.5,2.5 0 0,1 16.5,19Z" />
+						</Canvas>
+					</Viewbox>
+				</Button>
+				
+				<Button Classes="actions"
+				        Command="{Binding ShowDocumentationCommand, Mode=OneTime}"
+				        ToolTip.Tip="Opens official QuestPDF documentation">
+					<Viewbox Width="24" Height="24">
+						<Canvas Width="24" Height="24">
+							<Path Fill="White" Data="M19 1L14 6V17L19 12.5V1M21 5V18.5C19.9 18.15 18.7 18 17.5 18C15.8 18 13.35 18.65 12 19.5V6C10.55 4.9 8.45 4.5 6.5 4.5C4.55 4.5 2.45 4.9 1 6V20.65C1 20.9 1.25 21.15 1.5 21.15C1.6 21.15 1.65 21.1 1.75 21.1C3.1 20.45 5.05 20 6.5 20C8.45 20 10.55 20.4 12 21.5C13.35 20.65 15.8 20 17.5 20C19.15 20 20.85 20.3 22.25 21.05C22.35 21.1 22.4 21.1 22.5 21.1C22.75 21.1 23 20.85 23 20.6V6C22.4 5.55 21.75 5.25 21 5M10 18.41C8.75 18.09 7.5 18 6.5 18C5.44 18 4.18 18.19 3 18.5V7.13C3.91 6.73 5.14 6.5 6.5 6.5C7.86 6.5 9.09 6.73 10 7.13V18.41Z" />
+						</Canvas>
+					</Viewbox>
+				</Button>
+				
+				<Button Classes="actions"
+				        Command="{Binding SponsorProjectCommand, Mode=OneTime}"
+				        ToolTip.Tip="Do you like QuestPDF? Please consider sponsoring the project. It really helps!">
+					<Viewbox Width="24" Height="24">
+						<Canvas Width="24" Height="24">
+							<Path Fill="White" Data="M12,21.1L10.5,22.4C3.9,16.5 0.5,13.4 0.5,9.6C0.5,8.4 0.9,7.3 1.5,6.4C1.5,6.6 1.5,6.8 1.5,7C1.5,11.7 5.4,15.2 12,21.1M13.6,17C18.3,12.7 21.5,9.9 21.6,7C21.6,5 20.1,3.5 18.1,3.5C16.5,3.5 15,4.5 14.5,5.9H12.6C12,4.5 10.5,3.5 9,3.5C7,3.5 5.5,5 5.5,7C5.5,9.9 8.6,12.7 13.4,17L13.5,17.1M18,1.5C21.1,1.5 23.5,3.9 23.5,7C23.5,10.7 20.1,13.8 13.5,19.8C6.9,13.9 3.5,10.8 3.5,7C3.5,3.9 5.9,1.5 9,1.5C10.7,1.5 12.4,2.3 13.5,3.6C14.6,2.3 16.3,1.5 18,1.5Z" />
+						</Canvas>
+					</Viewbox>
+				</Button>
+			</StackPanel>
+			
+			<ScrollBar Grid.Row="1" Grid.Column="1"
+			           Orientation="Vertical" 
+			           AllowAutoHide="False" 
+			           Minimum="0" Maximum="1" 
+			           IsVisible="{Binding VerticalScrollbarVisible, Mode=OneWay}"
+			           Value="{Binding CurrentScroll, Mode=TwoWay}" 
+			           ViewportSize="{Binding ScrollViewportSize, Mode=OneWay}"></ScrollBar>
+		</Grid>
+	</Panel>
+</Window>

Source/QuestPDF.Previewer/PreviewerWindow.axaml.cs

@@ -0,0 +1,23 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace QuestPDF.Previewer
+{
+    class PreviewerWindow : Window
+    {
+        public PreviewerWindow()
+        {
+            InitializeComponent();
+        }
+
+        protected override void OnClosed(EventArgs e)
+        {
+            
+        }
+
+        private void InitializeComponent()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+    }
+}

Source/QuestPDF.Previewer/PreviewerWindowViewModel.cs

@@ -0,0 +1,89 @@
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using ReactiveUI;
+using Unit = System.Reactive.Unit;
+using Avalonia.Threading;
+
+namespace QuestPDF.Previewer
+{
+    internal class PreviewerWindowViewModel : ReactiveObject
+    {
+        private ObservableCollection<PreviewPage> _pages = new();
+        public ObservableCollection<PreviewPage> Pages
+        {
+            get => _pages;
+            set => this.RaiseAndSetIfChanged(ref _pages, value);
+        }
+        
+        private float _currentScroll;
+        public float CurrentScroll
+        {
+            get => _currentScroll;
+            set => this.RaiseAndSetIfChanged(ref _currentScroll, value);
+        }
+
+        private float _scrollViewportSize;
+        public float ScrollViewportSize
+        {
+            get => _scrollViewportSize;
+            set
+            {
+                this.RaiseAndSetIfChanged(ref _scrollViewportSize, value);
+                VerticalScrollbarVisible = value < 1;
+            }
+        }
+
+        private bool _verticalScrollbarVisible;
+        public bool VerticalScrollbarVisible
+        {
+            get => _verticalScrollbarVisible;
+            private set => Dispatcher.UIThread.Post(() => this.RaiseAndSetIfChanged(ref _verticalScrollbarVisible, value));
+        }
+
+        public ReactiveCommand<Unit, Unit> ShowPdfCommand { get; }
+        public ReactiveCommand<Unit, Unit> ShowDocumentationCommand { get; }
+        public ReactiveCommand<Unit, Unit> SponsorProjectCommand { get; }
+
+        public PreviewerWindowViewModel()
+        {
+            CommunicationService.Instance.OnDocumentRefreshed += HandleUpdatePreview;
+            
+            ShowPdfCommand = ReactiveCommand.Create(ShowPdf);
+            ShowDocumentationCommand = ReactiveCommand.Create(() => OpenLink("https://www.questpdf.com/api-reference/index.html"));
+            SponsorProjectCommand = ReactiveCommand.Create(() => OpenLink("https://github.com/sponsors/QuestPDF"));
+        }
+
+        private void ShowPdf()
+        {
+            var filePath = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid():N}.pdf");
+            Helpers.GeneratePdfFromDocumentSnapshots(filePath, Pages);
+
+            OpenLink(filePath);
+        }
+        
+        private void OpenLink(string path)
+        {
+            using var openBrowserProcess = new Process
+            {
+                StartInfo = new()
+                {
+                    UseShellExecute = true,
+                    FileName = path
+                }
+            };
+
+            openBrowserProcess.Start();
+        }
+        
+        private void HandleUpdatePreview(ICollection<PreviewPage> pages)
+        {
+            var oldPages = Pages;
+            
+            Pages.Clear();
+            Pages = new ObservableCollection<PreviewPage>(pages);
+            
+            foreach (var page in oldPages)
+                page.Picture.Dispose();
+        }
+    }
+}

Source/QuestPDF.Previewer/Program.cs

@@ -0,0 +1,38 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.ReactiveUI;
+using QuestPDF.Previewer;
+
+var applicationPort = GetCommunicationPort();
+CommunicationService.Instance.Start(applicationPort);
+
+if(Application.Current?.ApplicationLifetime is ClassicDesktopStyleApplicationLifetime desktop)
+{
+    desktop.MainWindow = new PreviewerWindow()
+    {
+        DataContext = new PreviewerWindowViewModel()
+    };
+                
+    desktop.MainWindow.Show();
+    desktop.Start(Array.Empty<string>());
+                
+    return;
+}
+
+AppBuilder
+    .Configure(() => new PreviewerApp())
+    .UsePlatformDetect()    
+    .UseReactiveUI()
+    .StartWithClassicDesktopLifetime(Array.Empty<string>());
+
+static int GetCommunicationPort()
+{
+    const int defaultApplicationPort = 12500;
+    
+    var arguments = Environment.GetCommandLineArgs();
+
+    if (arguments.Length < 2)
+        return defaultApplicationPort;
+
+    return int.TryParse(arguments[1], out var port) ? port : defaultApplicationPort;
+}    

Source/QuestPDF.Previewer/QuestPDF.Previewer.csproj

@@ -0,0 +1,55 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <Authors>MarcinZiabek</Authors>
+        <Company>CodeFlint</Company>
+        <PackageId>QuestPDF.Previewer</PackageId>
+        <Version>2022.12.0</Version>
+        <PackAsTool>true</PackAsTool>
+        <ToolCommandName>questpdf-previewer</ToolCommandName>
+        <PackageDescription>QuestPDF is an open-source, modern and battle-tested library that can help you with generating PDF documents by offering friendly, discoverable and predictable C# fluent API.</PackageDescription>
+        <PackageReleaseNotes>Initial release.</PackageReleaseNotes>
+        <LangVersion>10</LangVersion>
+        <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+        <PackageIcon>Logo.png</PackageIcon>
+        <PackageIconUrl>https://www.questpdf.com/images/package-logo.png</PackageIconUrl>
+        <PackageReadmeFile>PackageReadme.md</PackageReadmeFile>
+        <PackageProjectUrl>https://www.questpdf.com/</PackageProjectUrl>
+        <RepositoryUrl>https://github.com/QuestPDF/library.git</RepositoryUrl>
+        <RepositoryType>git</RepositoryType>
+        <Copyright>Marcin Ziąbek, QuestPDF contributors</Copyright>
+        <PackageTags>pdf report file export generate generation tool create creation render portable document format quest html library converter open source free standard core previewer</PackageTags>
+        <PackageLicenseExpression>MIT</PackageLicenseExpression>
+        <IncludeSymbols>true</IncludeSymbols>
+        <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+        <OutputType>exe</OutputType>
+        <TargetFramework>net6.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <AvaloniaResource Include="Resources\Logo.png" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <EmbeddedResource Include="Resources\Logo.png" />
+        <None Include="Resources\Logo.png" Pack="true" PackagePath="\" />
+        <None Include="Resources\PackageReadme.md" Pack="true" PackagePath="\" />
+    </ItemGroup>
+    
+    <ItemGroup>
+        <FrameworkReference Include="Microsoft.AspNetCore.App" />
+        <PackageReference Include="Avalonia" Version="0.10.18" />
+        <PackageReference Include="Avalonia.Desktop" Version="0.10.18" />
+        <PackageReference Include="Avalonia.Diagnostics" Version="0.10.18" />
+        <PackageReference Include="Avalonia.Markup.Xaml.Loader" Version="0.10.18" />
+        <PackageReference Include="Avalonia.ReactiveUI" Version="0.10.18" />
+        <PackageReference Include="ReactiveUI" Version="18.4.1" />
+        <PackageReference Include="SkiaSharp.NativeAssets.Linux.NoDependencies" Version="2.88.3" />
+        <PackageReference Include="SkiaSharp.NativeAssets.Win32" Version="2.88.3" />
+        <PackageReference Include="SkiaSharp.NativeAssets.macOS" Version="2.88.3" />
+        <PackageReference Include="System.Reactive" Version="5.0.0" />
+        <PackageReference Include="SkiaSharp" Version="2.88.3" />
+    </ItemGroup>
+</Project>

Source/QuestPDF.Previewer/readme.md

@@ -0,0 +1,23 @@
+Install nuget locally (in directory where nupkg file is located)
+
+```
+dotnet tool install --global --add-source . QuestPDF.Previewer --global
+```
+
+Run on default port
+
+```
+questpdf-previewer
+```
+
+Run on custom port
+
+```
+questpdf-previewer 12500
+```
+
+Remove nuget locally 
+
+```
+dotnet tool uninstall QuestPDF.Previewer --global
+```

Source/QuestPDF.ReportSample/Helpers.cs

@@ -31,7 +31,7 @@ namespace QuestPDF.ReportSample
         public static string FormatAsRomanNumeral(this int number)
         {
             if (number < 0 || number > 3999) 
-                throw new ArgumentOutOfRangeException("Number should be in range from 1 to 3999");
+                throw new ArgumentOutOfRangeException(nameof(number), "Number should be in range from 1 to 3999");
             
             return RomanNumeralCache.GetOrAdd(number, x =>
             {

Source/QuestPDF.ReportSample/Layouts/SectionTemplate.cs

@@ -83,8 +83,6 @@ namespace QuestPDF.ReportSample.Layouts
                     .Range(0, model.PhotoCount)
                     .ToList()
                     .ForEach(x => grid.Item().AspectRatio(4 / 3f).Component<ImagePlaceholder>());
-
-                //grid.Item().AspectRatio(4 / 3f).Width(100000).Component<ImagePlaceholder>();
             });
         }
     }