Protect PDF
Encrypt a PDF with a password.
Protect PDF is almost ready
This tool runs on our secure processing backend with a job queue, virus scanning and auto-deletion. The interface is live — server processing is being connected now.
Your file is transferred over an encrypted connection, processed in an isolated worker, and automatically deleted (within 1 hour for guests, 24 hours for registered users).
How to protect pdf
- 1
Upload your file to the Protect PDF tool — drag and drop or click to browse.
- 2
Adjust the available options to match exactly what you need.
- 3
Run the tool — protect pdf completes in seconds on our secure servers.
- 4
Preview the result, then copy it or download the output file.
Frequently asked questions
Is the Protect PDF tool free to use?+
Yes. Protect PDF is completely free with no watermarks, no sign-up requirement, and no file-size paywall. Create a free account only if you want your history and favorites saved.
Is my data safe with the Protect PDF tool?+
Yes. Files are transferred over an encrypted connection, processed in an isolated worker, and automatically deleted (within 1 hour for guests and 24 hours for registered users). We are GDPR and CCPA aligned.
Do I need to install anything to protect pdf?+
No installation needed. Protect PDF works in any modern browser on Windows, macOS, Linux, Android and iOS, and can be installed as a lightweight web app (PWA).
What pdf tools formats does it support?+
Encrypt a PDF with a password.