Protect PDF

Applies AES-256 password encryption locally. Files and passwords stay in the browser. Up to 40 MB and 1,000 pages; existing digital signatures may be invalidated.

Your workbenchInputs are not stored

Result

Enter your values and run the tool to see your result.

How to use this tool

Check the units, enter your values, and run the tool. Results follow the assumptions and method below.

References

https://github.com/LibPDF-js/core
https://qpdf.readthedocs.io/en/stable/encryption.html