Protect / Unlock PDF
Add or remove a PDF password — privately, in your browser.
Add or remove a PDF password entirely in your browser. Encrypt a document so it can only be opened with a password, or remove a password from a PDF you can already open. Nothing is uploaded — the file and password stay on your device.
Click or drag files here
Supports PDF documents up to 100MB. Processed entirely in your browser.
Common use cases
- Protect a confidential contract before sending it
- Remove a password you no longer need
- Encrypt a document with sensitive personal data
How it works
Select your PDF
Drop or pick a PDF. It is processed locally — never uploaded.
Choose add or remove
Add a new password, or enter the existing one to remove it.
Download
Save the protected or unlocked PDF.
Frequently Asked Questions
Is my password sent anywhere?
No. Encryption and decryption happen entirely in your browser — neither the file nor the password leaves your device.
What encryption is used?
Standard PDF encryption. The same password is set as both the user and owner password.
I forgot the password — can you recover it?
No. This tool can only remove a password you already know. It cannot crack or recover a lost password.