---
title: "PreprocessingSettings"
canonical_url: "https://www.nutrient.io/api/csharp/settings/vision/advanced/preprocessing-settings/"
md_url: "https://www.nutrient.io/api/csharp/settings/vision/advanced/preprocessing-settings.md"
last_updated: "2026-10-08T08:55:57.713Z"
description: "Settings for Preprocessing. Values fall back through three levels: document → SDK → built-in default."
---

Settings for Preprocessing. Values fall back through three levels: document → SDK → built-in default. Writes target the document only when set on a document's settings, otherwise the SDK globally when set on SdkSettings.

```csharp

using Nutrient;

```

The SDK creates this class through factory methods or other SDK objects.

## Properties

### RestorationMode

```csharp

public RestorationMode RestorationMode { get; set; }

```

Gets or sets the value of RestorationMode. Reads walk the chain: Document override → SDK override → Default. Writes go to document level if available, otherwise SDK level.

**Type:** [`RestorationMode`](/api/csharp/enums/restoration-mode/)

## Resource management

```csharp

public void Dispose()

```

`PreprocessingSettings` implements `IDisposable`. Call `Dispose()` or use a C# `using` declaration to release its native handle right away. If you don't, the handle is released when the object is garbage collected.

---

## Related pages

- [Advanced](/api/csharp/settings/vision/advanced.md)
- [Ai Augmenter Settings](/api/csharp/settings/vision/advanced/ai-augmenter-settings.md)
- [Ai Processing Settings](/api/csharp/settings/vision/advanced/ai-processing-settings.md)
- [Anthropic Api Settings](/api/csharp/settings/vision/advanced/anthropic-api-settings.md)
- [Content Extraction Settings](/api/csharp/settings/vision/advanced/content-extraction-settings.md)
- [Custom Vlm Api Settings](/api/csharp/settings/vision/advanced/custom-vlm-api-settings.md)
- [Deskew Settings](/api/csharp/settings/vision/advanced/deskew-settings.md)
- [Document Layout Json Export Settings](/api/csharp/settings/vision/advanced/document-layout-json-export-settings.md)
- [Finalizer Settings](/api/csharp/settings/vision/advanced/finalizer-settings.md)
- [Form Labeling Settings](/api/csharp/settings/vision/advanced/form-labeling-settings.md)
- [Form Recognition Settings](/api/csharp/settings/vision/advanced/form-recognition-settings.md)
- [Form Vlm Connection Settings](/api/csharp/settings/vision/advanced/form-vlm-connection-settings.md)
- [Form Vlm Fallback Connection Settings](/api/csharp/settings/vision/advanced/form-vlm-fallback-connection-settings.md)
- [Google Api Settings](/api/csharp/settings/vision/advanced/google-api-settings.md)
- [Handwriting Settings](/api/csharp/settings/vision/advanced/handwriting-settings.md)
- [Inference Layout Settings](/api/csharp/settings/vision/advanced/inference-layout-settings.md)
- [Inline Style Settings](/api/csharp/settings/vision/advanced/inline-style-settings.md)
- [Local Ai Processing Settings](/api/csharp/settings/vision/advanced/local-ai-processing-settings.md)
- [Local Vlm Settings](/api/csharp/settings/vision/advanced/local-vlm-settings.md)
- [Ocr Settings](/api/csharp/settings/vision/advanced/ocr-settings.md)
- [Omr Settings](/api/csharp/settings/vision/advanced/omr-settings.md)
- [Open Ai Api Endpoint Settings](/api/csharp/settings/vision/advanced/open-ai-api-endpoint-settings.md)
- [Open Ai Languages Detection Settings](/api/csharp/settings/vision/advanced/open-ai-languages-detection-settings.md)
- [Open Ai Picture Alt Settings](/api/csharp/settings/vision/advanced/open-ai-picture-alt-settings.md)
- [Pp Text Det Settings](/api/csharp/settings/vision/advanced/pp-text-det-settings.md)
- [Pp Text Rec Settings](/api/csharp/settings/vision/advanced/pp-text-rec-settings.md)
- [Reading Order Settings](/api/csharp/settings/vision/advanced/reading-order-settings.md)
- [Segmenter Settings](/api/csharp/settings/vision/advanced/segmenter-settings.md)
- [Table Recognition Settings](/api/csharp/settings/vision/advanced/table-recognition-settings.md)
- [Vision Acceleration Settings](/api/csharp/settings/vision/advanced/vision-acceleration-settings.md)
- [Vision Descriptor Settings](/api/csharp/settings/vision/advanced/vision-descriptor-settings.md)
- [Words Detection Settings](/api/csharp/settings/vision/advanced/words-detection-settings.md)