# ISignatureCompletionService Interface

> Completes a viewer signing operation with its input and native result.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Interface
- **Path:** TX Text Control .NET Server > Reference > TXTextControl.Web.MVC.DocumentViewer.Services > ISignatureCompletionService Interface
- **131 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer-services/isignaturecompletionservice/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer-services/isignaturecompletionservice/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer-services/isignaturecompletionservice/llms-full.txt

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### Description

Completes a viewer signing operation with its input and native result.

### Syntax

```plaintext
public interface ISignatureCompletionService
```

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## In This Section

- [ISignatureCompletionService.CompleteAsync Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer-services/isignaturecompletionservice/completeasync-method/llms-full.txt): Processes the signing data and returns the document sent to the viewer client.

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## Nearby

- **Previous:** [IDocumentDataProvider.Get Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer-services/idocumentdataprovider/get-method/llms-full.txt)
- **Next:** [ISignatureCompletionService.CompleteAsync Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer-services/isignaturecompletionservice/completeasync-method/llms-full.txt)