Protect PDF
Protect PDF secures your document with industry-standard AES-256 encryption. Nobody without the password can open the file. You can also independently disable printing, content copying, and editing permissions. Everything happens in your browser — your file is never sent to a server.
How to use
- 1Upload your PDF file.
- 2Set and confirm a password.
- 3Choose the permission settings.
- 4Download your encrypted PDF.
Why FREE PDF?
- Completely free
- No account required
- Processing happens in your browser whenever possible
- Your files stay yours
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Frequently Asked Questions
Keep your password somewhere safe. If it's forgotten, there is no known way to open the PDF again — this tool does not offer password recovery.