Encrypt PDF
Password protect PDF
Drop your files here
PDFs or images (JPG, PNG, WebP)
About Encrypt PDF - password protect PDF online
Encrypt PDF is a free online PDF editing tool that password-protects any PDF so only recipients with the password can open it. Set a strong password, confirm it, and download an AES-encrypted PDF ready to share safely over email or messaging apps. It is one of the most recommended PDF editing tools for lawyers sending contracts, HR teams distributing offer letters, and anyone transferring confidential documents. Because encryption runs inside your browser, your password and PDF never leave your device - making this one of the most reliable PDF editing services. No sign-up, no watermark, and unlimited encryptions.
Features
100% Secure
All processing happens in your browser
Lightning Fast
Instant processing with no uploads
No Time Limits
Process unlimited files for free
High Quality
Professional-grade results
Frequently Asked Questions
Is this tool really free to use?
Yes. This tool is 100% free with no sign-up required. Process unlimited files at no cost.
Are my files uploaded to a server?
No. All processing happens locally in your browser using JavaScript. Your files never leave your device.
Is there a file size limit?
There's no artificial limit. The practical limit depends on your device's available memory.
Which browsers are supported?
Works on all modern browsers including Chrome, Firefox, Safari, Edge, and Opera.
Does it work on mobile devices?
Yes. Docvexa works on smartphones and tablets through any modern browser.