ES-872650-Add line numbers restarting on each page in HTML to PDF Conversion using DocIO

HTML-conversions/Add-line-number-HTML-to-PDF-conversion/.NET/Add-line-number-HTML-to-PDF-conversion.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34322.80
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Add-line-number-HTML-to-PDF-conversion", "Add-line-number-HTML-to-PDF-conversion\Add-line-number-HTML-to-PDF-conversion.csproj", "{081A1582-C9CA-45BB-8165-2CFD3CAC5E83}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{081A1582-C9CA-45BB-8165-2CFD3CAC5E83}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{081A1582-C9CA-45BB-8165-2CFD3CAC5E83}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{081A1582-C9CA-45BB-8165-2CFD3CAC5E83}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{081A1582-C9CA-45BB-8165-2CFD3CAC5E83}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3904D757-E1D1-4AF0-908D-B7C731C2D459}
+	EndGlobalSection
+EndGlobal

HTML-conversions/Add-line-number-HTML-to-PDF-conversion/.NET/Add-line-number-HTML-to-PDF-conversion/Add-line-number-HTML-to-PDF-conversion.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Add_line_number_HTML_to_PDF_conversion</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.DocIORenderer.Net.Core" Version="*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Data\Sample.html">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="Output\.gitkeep">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

HTML-conversions/Add-line-number-HTML-to-PDF-conversion/.NET/Add-line-number-HTML-to-PDF-conversion/Data/Sample.html

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+<p>Page1 This is an example paragraph with some placeholder text. <strong>It includes bold formatting for emphasis.</strong></p>
+<p>Another sample sentence follows with italicized text for emphasis. <em>This part is highlighted.</em></p>
+<p>This paragraph contains random words to simulate a real sentence structure.</p>
+<p>Additional content goes here...</p>
+<p>More text can be added in this section.</p>
+<p>Page2 This is the beginning of a new section with more example text.</p>
+<p>Here is another sample paragraph with generic placeholder content.</p>
+<p>Text continues with additional details and structured sentences.</p>
+<p>More words are added here to maintain flow and readability.</p>

HTML-conversions/Add-line-number-HTML-to-PDF-conversion/.NET/Add-line-number-HTML-to-PDF-conversion/Output/.gitkeep

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+

HTML-conversions/Add-line-number-HTML-to-PDF-conversion/.NET/Add-line-number-HTML-to-PDF-conversion/Program.cs

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+using Syncfusion.DocIO.DLS;
+using Syncfusion.DocIO;
+using Syncfusion.DocIORenderer;
+using Syncfusion.Pdf;
+
+// Open the HTML file as a stream.
+using (FileStream fileStreamPath = new FileStream(Path.GetFullPath(@"Data/Sample.html"), FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
+{
+    // Load the file stream into a Word document in HTML format.
+    using (WordDocument document = new WordDocument(fileStreamPath, FormatType.Html))
+    {
+        // Instantiate DocIORenderer to handle Word to PDF conversion.
+        DocIORenderer render = new DocIORenderer();
+
+        // Split the HTML content into sections and add line numbers where necessary.
+        SplitSectionAndSetLineNumber(document);
+
+        // Convert the modified Word document into a PDF document.
+        PdfDocument pdfDocument = render.ConvertToPDF(document);
+
+        // Create a file stream for saving the output PDF file.
+        using (FileStream outputFileStream = new FileStream(Path.GetFullPath(@"Output/Output.pdf"), FileMode.Create, FileAccess.ReadWrite))
+        {
+            // Save the generated PDF document to the output file stream.
+            pdfDocument.Save(outputFileStream);
+        }
+    }
+}
+
+/// <summary>
+/// Splits the document content into sections at a placeholder and enables line numbering.
+/// </summary>
+/// <param name="document">The Word document to modify.</param>
+void SplitSectionAndSetLineNumber(WordDocument document)
+{
+    // Get the first and only section of the document.
+    WSection section = document.Sections[0];
+
+    // Find the text range for the placeholder text ("Page2").
+    WTextRange placeHolder = document.Find("Page2", true, true).GetAsOneRange();
+
+    // Get the index of the paragraph containing the placeholder.
+    int index = section.Body.ChildEntities.IndexOf(placeHolder.OwnerParagraph);
+
+    // Clone the entire section to create a new section starting from the placeholder.
+    WSection clonedSection = section.Clone();
+
+    // Remove all content before the placeholder paragraph in the cloned section.
+    for (int i = index - 1; i >= 0; i--)
+        clonedSection.Body.ChildEntities.RemoveAt(i);
+
+    // Add the modified cloned section to the document.
+    document.ChildEntities.Add(clonedSection);
+
+    // Remove all content from the placeholder paragraph to the end in the original section.
+    for (int i = index; i < section.Body.ChildEntities.Count;)
+        section.Body.ChildEntities.RemoveAt(i);
+
+    // Enable line numbering to restart at each section.
+    section.PageSetup.LineNumberingMode = LineNumberingMode.RestartSection;
+    clonedSection.PageSetup.LineNumberingMode = LineNumberingMode.RestartSection;
+}