Protect PDF (Free, Private, No Upload)
Add password protection to PDFs without leaving your browser. Encryption is performed locally so sensitive documents never leave your device.
- Click Choose PDF and open your file.
- Enter a password and confirm permissions.
- Press Save PDF to download the protected document.
Related tools: Lock PDF, Unlock PDF, Remove Links
FAQ
What type of encryption is used?
Standard PDF encryption with user and owner passwords.
Is the file uploaded?
No, encryption is done locally in the browser.
Can I restrict printing?
Yes, set permissions to limit printing or editing.
Can I remove the password later?
Use the Unlock PDF tool to remove passwords.
Does it work offline?
Once loaded, the tool works without internet access.