Nomad changes

docs/snippets/csharp/plugins/pdf_only_processor.md

@@ -0,0 +1,54 @@
+```csharp title="C#"
+using Kreuzberg;
+
+public class PdfOnlyProcessor : IPostProcessor
+{
+    public string Name => "pdf-only-processor";
+    public string Version => "1.0.0";
+
+    public void Initialize()
+    {
+    }
+
+    public void Shutdown()
+    {
+    }
+
+    public void Process(ExtractionResult result, ExtractionConfig config)
+    {
+        if (result.MimeType != "application/pdf")
+        {
+            Console.WriteLine($"Skipping non-PDF: {result.MimeType}");
+        }
+    }
+
+    public ProcessingStage ProcessingStage()
+    {
+        return ProcessingStage.Middle;
+    }
+
+    public bool ShouldProcess(ExtractionResult result, ExtractionConfig config)
+    {
+        return result.MimeType == "application/pdf";
+    }
+
+    public ulong EstimatedDurationMs(ExtractionResult result)
+    {
+        return 10;
+    }
+
+    public int Priority()
+    {
+        return 50;
+    }
+}
+
+class Program
+{
+    static void Main()
+    {
+        var processor = new PdfOnlyProcessor();
+        PostProcessorRegistry.Register(processor);
+    }
+}
+```