Password protect a PDF
Put a password on a PDF. Free, no account; your files never leave your device.
Nibras AI assistant
Attach a PDF and write: “convert to images”, “extract text”, “merge”, “add password”
How it works
- Choose a file or drop it here.
- Adjust the options and press the button.
- Download the result straight to your device.
Questions
Is a PDF password free?
Yes. There is no account and no payment.
Who knows the password?
Only you. The password does not go to a server.
What if the file will not open?
If the password is forgotten, this page cannot recover it.
Where is the result?
The locked PDF downloads straight to your device.