Add password protection to your PDF files. Free & 100% browser-based!
Drop your PDF here or click to browse
Files never leave your device!
Simple 3-step process
Select the PDF you want to password protect.
Enter a strong password and set permissions.
Download your password-protected PDF.
We use RC4-128 bit encryption (PDF Standard Security Handler Revision 3), compatible with Adobe Acrobat, Chrome, Firefox, and all major PDF readers.
No! Everything runs in your browser. Your PDF and password never leave your device.
We do not store your password. If you forget it, the PDF cannot be recovered. Always save your password safely!
No! Adding a password only adds encryption. All content remains 100% intact.