diff --git a/EnvelopeGenerator.Server/EnvelopeGenerator.Server/Program.cs b/EnvelopeGenerator.Server/EnvelopeGenerator.Server/Program.cs
index 96ba37ca..fbdb824c 100644
--- a/EnvelopeGenerator.Server/EnvelopeGenerator.Server/Program.cs
+++ b/EnvelopeGenerator.Server/EnvelopeGenerator.Server/Program.cs
@@ -104,7 +104,7 @@ try
         {
             Version = "v1",
             Title = "signFLOW Absender-API",
-            Description = "Eine API zur Verwaltung der Erstellung, des Versands und der Nachverfolgung von Umschlägen in der signFLOW-Anwendung.",
+            Description = "Eine API zur Verwaltung der Erstellung, des Versands und der Nachverfolgung von Umschl�gen in der signFLOW-Anwendung.",
             Contact = new OpenApiContact
             {
                 Name = "Digital Data GmbH",
@@ -338,6 +338,10 @@ try
     builder.Services.AddDevExpressBlazor();
     builder.Services.AddDevExpressServerSideBlazorPdfViewer();
 
+    // PdfSharp font resolver — required for .NET 8 (no system font access without it)
+    PdfSharp.Fonts.GlobalFontSettings.FontResolver =
+        EnvelopeGenerator.Server.Services.PdfSharpFontResolver.Instance;
+
     // Configuration Options
     builder.Services.Configure<EnvelopeGenerator.Server.Client.Options.ApiOptions>(
         builder.Configuration.GetSection("ApiOptions"));
diff --git a/EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/PdfSharpFontResolver.cs b/EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/PdfSharpFontResolver.cs
new file mode 100644
index 00000000..84acfe22
--- /dev/null
+++ b/EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/PdfSharpFontResolver.cs
@@ -0,0 +1,46 @@
+using PdfSharp.Fonts;
+
+namespace EnvelopeGenerator.Server.Services;
+
+/// <summary>
+/// PdfSharp 6.x IFontResolver for .NET 8.
+/// PdfSharp cannot access system fonts on .NET Core/8 without an explicit resolver.
+/// This implementation reads fonts directly from the Windows Fonts folder.
+/// Register once at startup: GlobalFontSettings.FontResolver = PdfSharpFontResolver.Instance;
+/// </summary>
+public class PdfSharpFontResolver : IFontResolver
+{
+    public static readonly PdfSharpFontResolver Instance = new();
+
+    private static readonly string FontsFolder =
+        Environment.GetFolderPath(Environment.SpecialFolder.Fonts);
+
+    public FontResolverInfo? ResolveTypeface(string familyName, bool isBold, bool isItalic)
+    {
+        var key = familyName.ToLowerInvariant() switch
+        {
+            "arial" => isBold ? "arialbd" : "arial",
+            _       => null
+        };
+
+        return key is null ? null : new FontResolverInfo(key);
+    }
+
+    public byte[] GetFont(string faceName)
+    {
+        var fileName = faceName switch
+        {
+            "arialbd" => "arialbd.ttf",
+            _         => "arial.ttf",
+        };
+
+        var path = Path.Combine(FontsFolder, fileName);
+
+        if (!File.Exists(path))
+            throw new FileNotFoundException(
+                $"Font file not found: {path}. " +
+                "Ensure Arial is installed on the server.");
+
+        return File.ReadAllBytes(path);
+    }
+}