PDF Encrypt
Add a password to a PDF so only people with the password can open it. Opens in Adobe Acrobat, Apple Preview, and Foxit. Free, private, runs in your browser.
Heads up — there's no password recovery
The file is encrypted with your password right here in your browser — nothing is uploaded. The output opens in Adobe Acrobat, Apple Preview, and most desktop PDF readers. After downloading, double-check it opens with your password before deleting the original. If you forget the password, the file can't be recovered.
PDFs up to 100 MB