# Document Security

> Protect document content with TX Text Control: PDF encryption and permissions, encrypted input, editor protection, redaction, hidden data and watermarks.

- **Product:** TX Text Control .NET Server
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET Server > Security > Document Security
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/llms-full.txt

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## On This Page

- [Choose the Right Protection](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#choose-the-right-protection)
- [Encrypt PDF Documents](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#encrypt-pdf-documents)
- [Open Encrypted PDF Documents](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#open-encrypted-pdf-documents)
- [Protect a Document While It Is Edited](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#protect-a-document-while-it-is-edited)
- [Redact Text](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#redact-text)
- [Remove Hidden Data](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#remove-hidden-data)
- [Mark Copies With Watermarks](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#mark-copies-with-watermarks)
- [Next Steps](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/documents/#next-steps)

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## Nearby

- **Previous:** [WebSocket Security](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/websockets/llms.txt)
- **Next:** [Digital Signatures](https://docs.textcontrol.com/tx-text-control-dotnet-server/security/signatures/llms.txt)