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.
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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.