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docs/snippets/csharp/advanced/chunking_config.md

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+```csharp title="C#"
+using Kreuzberg;
+
+class Program
+{
+    static async Task Main()
+    {
+        var config = new ExtractionConfig
+        {
+            Chunking = new ChunkingConfig
+            {
+                MaxChars = 1000,
+                MaxOverlap = 200,
+                Embedding = new EmbeddingConfig
+                {
+                    Model = EmbeddingModelType.Preset("all-minilm-l6-v2"),
+                    Normalize = true,
+                    BatchSize = 32
+                }
+            }
+        };
+
+        try
+        {
+            var result = await KreuzbergLib.ExtractFileAsync(
+                "document.pdf",
+                config
+            ).ConfigureAwait(false);
+
+            Console.WriteLine($"Chunks: {result.Chunks.Count}");
+            foreach (var chunk in result.Chunks)
+            {
+                Console.WriteLine($"Content length: {chunk.Content.Length}");
+                if (chunk.Embedding != null)
+                {
+                    Console.WriteLine($"Embedding dimensions: {chunk.Embedding.Length}");
+                }
+            }
+        }
+        catch (KreuzbergException ex)
+        {
+            Console.WriteLine($"Error: {ex.Message}");
+        }
+    }
+}
+```
+
+```csharp title="C# - Markdown with Heading Context"
+using Kreuzberg;
+
+class Program
+{
+    static async Task Main()
+    {
+        var config = new ExtractionConfig
+        {
+            Chunking = new ChunkingConfig
+            {
+                MaxChars = 500,
+                MaxOverlap = 50,
+                Sizing = new ChunkSizingConfig
+                {
+                    Type = "tokenizer",
+                    Model = "Xenova/gpt-4o"
+                }
+            }
+        };
+
+        try
+        {
+            var result = await KreuzbergLib.ExtractFileAsync(
+                "document.md",
+                config
+            ).ConfigureAwait(false);
+
+            foreach (var chunk in result.Chunks)
+            {
+                if (chunk.HeadingContext?.Headings != null)
+                {
+                    Console.WriteLine("Headings:");
+                    foreach (var heading in chunk.HeadingContext.Headings)
+                    {
+                        Console.WriteLine($"  Level {heading.Level}: {heading.Text}");
+                    }
+                }
+            }
+        }
+        catch (KreuzbergException ex)
+        {
+            Console.WriteLine($"Error: {ex.Message}");
+        }
+    }
+}
+```
+
+```csharp title="C# - Prepend Heading Context"
+using Kreuzberg;
+
+class Program
+{
+    static async Task Main()
+    {
+        var config = new ExtractionConfig
+        {
+            Chunking = new ChunkingConfig
+            {
+                MaxChars = 500,
+                MaxOverlap = 50,
+                PrependHeadingContext = true
+            }
+        };
+
+        try
+        {
+            var result = await KreuzbergLib.ExtractFileAsync(
+                "document.md",
+                config
+            ).ConfigureAwait(false);
+
+            foreach (var chunk in result.Chunks)
+            {
+                // Each chunk's content is prefixed with its heading breadcrumb
+                Console.WriteLine(chunk.Content[..Math.Min(100, chunk.Content.Length)]);
+            }
+        }
+        catch (KreuzbergException ex)
+        {
+            Console.WriteLine($"Error: {ex.Message}");
+        }
+    }
+}
+```