Protect / unlock
Encrypt a PDF with a password, or remove an existing one.
To protect a PDF, enter a password: the file is encrypted locally. You can also remove an existing password. Everything runs in your browser: the file is never uploaded to a server.
- 100% local processing
- 100% free
- No sign-up
How to
- Drop your PDF.
- Choose “Protect” or “Unlock” and enter the password.
- Download the encrypted or decrypted file.
Features
Password encryption
The PDF is encrypted: the password will be required to open it, in any compliant PDF reader.
Password removal
Know a PDF's password? Remove it to get a freely viewable version.
Maximum privacy
Encryption runs in the browser: neither the file nor the password passes through a server.
Compatible everywhere
Protection uses standard PDF encryption, recognized by Acrobat, browsers and mobile readers.
Use cases
- Secure a payslip or bank statement before sending.
- Protect a confidential contract shared by email.
- Lock HR or medical documents.
- Remove a no-longer-needed password from a PDF you own.
Your files never leave your device
Unlike most online PDF tools that upload your files to their servers, all processing happens right here, in your browser. No document is ever sent, stored or analyzed remotely: it's free, no sign-up, and private by design.
Frequently asked questions
- Is the password sent anywhere?
- No. Encryption/decryption is 100% local: nothing leaves your device.
- Can I unlock any PDF?
- You can only remove protection if you know the password. The tool does not “crack” any encryption.
- What encryption level is used?
- Standard password-based PDF encryption, compatible with the main readers on the market.
- Are my files uploaded to a server?
- No. All processing happens in your browser: your files never leave your device.