1012802- Added Dedicated font sample in DocIO

Unified-font-manager/.NET/Dedicated-font-manager.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.37012.4 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dedicated-font-manager", "Dedicated-font-manager\Dedicated-font-manager.csproj", "{419DDFEB-A2E2-4090-9E1D-0BE6D9EE80AC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{419DDFEB-A2E2-4090-9E1D-0BE6D9EE80AC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{419DDFEB-A2E2-4090-9E1D-0BE6D9EE80AC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{419DDFEB-A2E2-4090-9E1D-0BE6D9EE80AC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{419DDFEB-A2E2-4090-9E1D-0BE6D9EE80AC}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {75E58B0E-2E19-4599-894D-D6CDD93A3D7C}
+	EndGlobalSection
+EndGlobal

Unified-font-manager/.NET/Dedicated-font-manager/Controllers/HomeController.cs

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+using Dedicated_font_manager.Models;
+using Microsoft.AspNetCore.Mvc;
+using Syncfusion.DocIO.DLS;
+using Syncfusion.DocIORenderer;
+using Syncfusion.Pdf;
+using Syncfusion.Presentation;
+using Syncfusion.PresentationRenderer;
+using Syncfusion.XlsIO;
+using Syncfusion.XlsIORenderer;
+using System.Diagnostics;
+
+namespace Dedicated_font_manager.Controllers
+{
+    public class HomeController : Controller
+    {
+        private readonly ILogger<HomeController> _logger;
+
+        public HomeController(ILogger<HomeController> logger)
+        {
+            _logger = logger;
+        }
+        public IActionResult OfficeToPDF(string button)
+        {
+            if (button == null)
+                return View("Index");
+
+            if (Request.Form.Files != null)
+            {
+                if (Request.Form.Files.Count == 0)
+                {
+                    ViewBag.Message = string.Format("Browse a Word document and then click the button to convert as a PDF document");
+                    return View("Index");
+                }
+                // Gets the extension from file.
+                string extension = Path.GetExtension(Request.Form.Files[0].FileName).ToLower();
+                string fileName = Path.GetFileNameWithoutExtension(Request.Form.Files[0].FileName);
+
+                try
+                {
+                    PdfDocument pdfDocument = null;
+                    // Switch on file extension to determine conversion method
+                    switch (extension.ToLower())
+                    {
+                        // Word document formats
+                        case ".doc":
+                        case ".docx":
+                        case ".dot":
+                        case ".dotx":
+                        case ".dotm":
+                        case ".docm":
+                        case ".xml":
+                        case ".rtf":
+                            using (MemoryStream inputStream = new MemoryStream())
+                            {
+                                // Copy uploaded file to memory stream
+                                Request.Form.Files[0].CopyTo(inputStream);
+                                inputStream.Position = 0;
+                                // Open and load the Word document
+                                using (WordDocument wordDocument = new WordDocument())
+                                {
+                                    // Convert Word document to PDF format
+                                    wordDocument.Open(inputStream, Syncfusion.DocIO.FormatType.Automatic);
+                                    using (DocIORenderer renderer = new DocIORenderer())
+                                    {
+                                        pdfDocument = renderer.ConvertToPDF(wordDocument);
+                                    }
+                                }
+                            }
+                            break;
+                        // Excel format
+                        case ".xlsx":
+                        case ".xls":
+                        case ".xltx":
+                        case ".xlsm":
+                        case ".csv":
+                        case ".xlsb":
+                        case ".xltm":
+                            using (MemoryStream inputStream = new MemoryStream())
+                            {
+                                // Copy uploaded file to memory stream
+                                Request.Form.Files[0].CopyTo(inputStream);
+                                inputStream.Position = 0;
+                                // Create Excel engine and load workbook
+                                using (ExcelEngine excelEngine = new ExcelEngine())
+                                {
+                                    IApplication application = excelEngine.Excel;
+                                    application.DefaultVersion = ExcelVersion.Xlsx;
+                                    IWorkbook workbook = application.Workbooks.Open(inputStream);
+                                    // Convert Excel workbook to PDF format
+                                    XlsIORenderer renderer = new XlsIORenderer();
+                                    pdfDocument = renderer.ConvertToPDF(workbook);
+                                }
+                            }
+                            break;
+                        // PowerPoint format
+                        case ".pptx":
+                            using (MemoryStream inputStream = new MemoryStream())
+                            {
+                                // Copy uploaded file to memory stream
+                                Request.Form.Files[0].CopyTo(inputStream);
+                                inputStream.Position = 0;
+                                // Open PowerPoint presentation and convert to PDF
+                                using (IPresentation pptxDoc = Presentation.Open(inputStream))
+                                {
+                                    pdfDocument = PresentationToPdfConverter.Convert(pptxDoc);
+                                }
+                            }
+                            break;
+                        // Invalid file format
+                        default:
+                            ViewBag.Message = "Please choose Word, Excel or PowerPoint document to convert to PDF";
+                            return null;
+                    }
+                    // Save converted PDF and return as downloadable file
+                    if (pdfDocument != null)
+                    {
+                        using (pdfDocument)
+                        {
+                            // Create memory stream to hold the PDF data
+                            MemoryStream pdfStream = new MemoryStream();
+                            // Save the converted PDF to memory stream
+                            pdfDocument.Save(pdfStream);
+                            // Reset stream position to beginning for reading
+                            pdfStream.Position = 0;
+                            // Return PDF as downloadable file to browser
+                            return File(pdfStream, "application/pdf", fileName + ".pdf");
+                        }
+                    }
+                }
+                catch (Exception ex)
+                {
+                    ViewBag.Message = string.Format(ex.Message);
+                }
+            }
+            else
+            {
+                ViewBag.Message = string.Format("Browse a Word,Excel or PowerPoint document and then click the button to convert as a PDF document");
+            }
+            return View("Index");
+        }
+
+        public IActionResult Index()
+        {
+            return View();
+        }
+
+        public IActionResult Privacy()
+        {
+            return View();
+        }
+
+        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+        public IActionResult Error()
+        {
+            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
+        }
+    }
+}

Unified-font-manager/.NET/Dedicated-font-manager/Dedicated-font-manager.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RootNamespace>Dedicated_font_manager</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.DocIORenderer.Net.Core" Version="*" />
+    <PackageReference Include="Syncfusion.PresentationRenderer.Net.Core" Version="*" />
+    <PackageReference Include="Syncfusion.XlsIORenderer.Net.Core" Version="*" />
+  </ItemGroup>
+
+</Project>

Unified-font-manager/.NET/Dedicated-font-manager/Models/ErrorViewModel.cs

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+namespace Dedicated_font_manager.Models
+{
+    public class ErrorViewModel
+    {
+        public string? RequestId { get; set; }
+
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+    }
+}

Unified-font-manager/.NET/Dedicated-font-manager/Program.cs

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+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+builder.Services.AddControllersWithViews();
+
+var app = builder.Build();
+
+// Set FontManager delay at startup (before any conversions happen)
+// Default is 30000ms. Adjust based on your conversion workload.
+Syncfusion.Drawing.Fonts.FontManager.Delay = 50000;
+
+// Access the application lifetime service
+var lifetime = app.Services.GetRequiredService<IHostApplicationLifetime>();
+
+// Register a callback to run when the app is shutting down
+lifetime.ApplicationStopping.Register(() =>
+{
+    Syncfusion.Drawing.Fonts.FontManager.ClearCache();
+});
+
+// Configure the HTTP request pipeline.
+if (!app.Environment.IsDevelopment())
+{
+    app.UseExceptionHandler("/Home/Error");
+    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
+    app.UseHsts();
+}
+
+app.UseHttpsRedirection();
+app.UseStaticFiles();
+
+app.UseRouting();
+
+app.UseAuthorization();
+
+app.MapControllerRoute(
+    name: "default",
+    pattern: "{controller=Home}/{action=Index}/{id?}");
+
+app.Run();

Unified-font-manager/.NET/Dedicated-font-manager/Properties/launchSettings.json

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+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:62691",
+      "sslPort": 44377
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5072",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:7105;http://localhost:5072",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

Unified-font-manager/.NET/Dedicated-font-manager/Views/Home/Index.cshtml

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+@{
+    ViewData["Title"] = "Home Page";
+}
+
+@using (Html.BeginForm("OfficeToPDF", "Home", FormMethod.Post, new { enctype = "multipart/form-data" }))
+{
+    @Html.AntiForgeryToken()
+    <div class="Common">
+        <div class="tablediv">
+            <div class="rowdiv">
+                <p>This sample illustrates how to convert Word document, Excel and PowerPoint file to PDF using Document SDK.</p>
+
+                <p><strong>Font Manager:</strong> A unified font-caching system that optimizes memory usage across all document conversion libraries (Word-to-PDF, Excel-to-PDF, PowerPoint-to-PDF, and PDF processing).
+                    This centralized font management significantly optimizes memory usage in multi-threaded conversions by preventing redundant font loading.
+                </p>
+            </div>
+
+            <div class="rowdiv" style="border-width: 0.5px; border-style: solid; border-color: lightgray; padding: 1px 5px 7px 5px; margin-top: 8px;">
+                Click the button to view the resultant PDF document being converted using Document SDK.
+                Please note that a PDF viewer is required to view the resultant PDF.
+
+                <div class="rowdiv" style="margin-top: 10px">
+                    <div class="celldiv">
+                        Select Document :
+                        @Html.TextBox("file", null, new { type = "file", accept = ".doc,.docx,.rtf,.dot,.dotm,.dotx,.docm,.xml,.xlsx,.xls,.xltx,.xlsm,.csv,.xlsb,.xltm,.pptx" })
+                        <br />
+                    </div>
+
+                    <div class="rowdiv" style="margin-top: 8px">
+                        <input class="buttonStyle" type="submit" value="Convert to PDF" name="button" style="width:150px;height:27px" />
+                        <br />
+                        <div class="text-danger">
+                            @ViewBag.Message
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+}

Unified-font-manager/.NET/Dedicated-font-manager/Views/Home/Privacy.cshtml

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+@{
+    ViewData["Title"] = "Privacy Policy";
+}
+<h1>@ViewData["Title"]</h1>
+
+<p>Use this page to detail your site's privacy policy.</p>

Unified-font-manager/.NET/Dedicated-font-manager/Views/Shared/Error.cshtml

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+@model ErrorViewModel
+@{
+    ViewData["Title"] = "Error";
+}
+
+<h1 class="text-danger">Error.</h1>
+<h2 class="text-danger">An error occurred while processing your request.</h2>
+
+@if (Model.ShowRequestId)
+{
+    <p>
+        <strong>Request ID:</strong> <code>@Model.RequestId</code>
+    </p>
+}
+
+<h3>Development Mode</h3>
+<p>
+    Swapping to <strong>Development</strong> environment will display more detailed information about the error that occurred.
+</p>
+<p>
+    <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
+    It can result in displaying sensitive information from exceptions to end users.
+    For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
+    and restarting the app.
+</p>