Protect PDF
Password-protect a PDF with encryption.
Password Protect a PDF
Encrypt a PDF with a password so it can only be opened by people who know it. The encryption is applied in your browser â the file and password never leave your device.
How it works
- Sets a password required to open the PDF
- Uses standard PDF encryption
- Anyone without the password can't read it
- Keep the password safe â it can't be recovered
Important
There is no way to recover a lost password, so store it securely. To remove a password later, use the Unlock PDF tool with the password.
Private & Processed Locally
Encryption happens entirely in your browser; your file and password are never uploaded.
Frequently Asked Questions
Common questions about the Protect PDF.
How strong is the protection?
It applies standard PDF password encryption requiring the password to open the file.
Can I recover a lost password?
No, so store it safely. You can remove it later with the Unlock PDF tool.
Are my files uploaded?
Yes. Everything is processed entirely in your browser and your files are never uploaded to a server.