# DigitalSignature Class

> An instance of the DigitalSignature class represents an X.509 certificate which can be used to digitally sign a PDF or PDF/A document. The DigitalSignature class is used with the SaveSettings.DigitalSignature property.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Reference
- **Kind:** Class
- **Introduced:** 17.0
- **Namespace:** `TXTextControl`
- **Package:** `TXTextControl.TextControl.WinForms.SDK` (assembly `TXTextControl.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.dll` from the setup
- **Path:** TX Text Control .NET for Windows Forms > Reference > TXTextControl > DigitalSignature Class
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/llms-full.txt

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## On This Page

- [Description](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/#description)
- [Syntax](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/#syntax)
- [Examples](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/#examples)
- [Members](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/#members)

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## In This Section

- [DigitalSignature Constructor](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/constructor/llms.txt): Initializes a new instance of the DigitalSignature class.

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## Nearby

- **Previous:** [DeleteBookmarksDialog.FindItem Method](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/deletebookmarksdialog/finditem-method/llms.txt)
- **Next:** [DigitalSignature Constructor](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/digitalsignature/constructor/llms.txt)