# PDF Passwords and Permissions

> What PDF user and master passwords and DocumentAccessPermissions protect in a Windows Forms app, where permissions stop and what the app must enforce itself.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET for Windows Forms > Security > PDF Passwords and Permissions
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/llms-full.txt

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## On This Page

- [What Each Setting Protects](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/#what-each-setting-protects)
- [Where Permissions Stop](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/#where-permissions-stop)
- [Respect the Permissions of a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/#respect-the-permissions-of-a-pdf)
- [Check That a PDF Is Encrypted](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/#check-that-a-pdf-is-encrypted)
- [Next Steps](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/pdf-passwords/#next-steps)

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## Nearby

- **Previous:** [Handling Untrusted Documents](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/untrusted-documents/llms.txt)
- **Next:** [Certificate and Private Key Handling](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/security/certificates/llms.txt)