Protect PDF with Password – Free Online Tool
Add a password to your PDF file online for free. Protect your documents instantly in your browser.
1Upload
2Protect
3Download
Related tools
Frequently asked questions
- Is my PDF safe?
- Yes. Encryption runs on the server and the file is deleted immediately after processing.
- What encryption is used?
- AES-256, the strongest standard for PDF documents.
- Can I open the protected PDF on any device?
- Yes, any PDF reader supports password-protected PDFs.
- Can I remove the password later?
- Yes, use the Unlock PDF tool with the same password.