Free & Secure Online PDF Encryption
Password Protect PDF Files
Encrypt your PDF documents with a secure password to prevent unauthorized viewing, printing, or copying.
Advertisement
Strong Standard Encryption
Prevents unauthorized parties from opening or reading your sensitive confidential documents.
Complete Privacy
Everything happens locally inside your browser. No passwords or PDFs are ever transmitted online.
Instant Protection
Lock your document in seconds and download the encrypted file directly to your desktop.
Frequently Asked Questions
Upload your document to the Toolchi Protect PDF tool, enter a secure password, confirm it, and click 'Protect PDF'. Your document is encrypted immediately and downloaded securely.