Protect PDF
Encrypt your PDF with a password to prevent unauthorized access and protect sensitive information.
Select PDF file
or drop PDF here
Files are processed securely in your browser.
Want the ultimate document toolkit?
Download Arcanize for Android to unlock advanced AI document scanning, smart edge detection, unlimited merges, and powerful PDF compression.
How to password protect a PDF
Securing confidential documents is critical. Arcanize allows you to encrypt your PDFs with strong passwords instantly, ensuring only authorized people can view, print, or edit your files.
Because everything happens right in your browser, your highly sensitive documents are never uploaded to any remote server. The encryption happens securely on your own device.
Military-Grade Privacy: No data leaves your computer. Period.
Strict Permissions: Automatically locks down printing, text copying, and modifications.