Protect PDF
Add password encryption to any PDF — set user and owner passwords for access control. Free, private, and everything runs locally in your browser.
Browser-Based Encryption
Your PDF and password never leave your device. Encryption is performed entirely in your browser.
Strong Protection
Adds 128-bit AES encryption to your PDF, the industry standard for document security.
Frequently Asked Questions
Upload your PDF to Toolsz Protect PDF, set user and owner passwords, then click Protect. The encrypted PDF downloads instantly — no signup, no watermarks, 100% client-side processing. Your unencrypted file never leaves your browser.
Toolsz Protect PDF adds AES-256 encryption to your PDF for free with no signup. Unlike Adobe which requires a subscription for PDF protection, Toolsz does it completely free. Both user and owner passwords can be set for full access control.