Protect PDF

Protect PDF encrypts your document with AES-256 so it can only be opened with the password you set. Share sensitive files knowing casual recipients can't peek inside.

Drag & drop a file here, or browse

one PDF file · up to 200 MB total

Files are processed on the fly and deleted right after — nothing is stored.

Good to know

Use a password you'll remember — PDF Converter never stores it, and there's no way to recover a protected file without it. The encrypted copy is a new download; your original file stays exactly as it was.