Encryption is the only reliable way to stop a PDF from being forwarded: GekiPDF applies AES-256, the same standard as paid desktop suites.
Set the password, download the protected file, and store the password somewhere safe — there is no recovery by design.
Frequently asked questions
Is AES-256 strong?
Yes; it is the current PDF encryption standard.
Can I set different user and owner passwords?
This tool sets one password that both opens and decrypts the file.
Can I remove it later?
Yes, with Unlock PDF if you know the password.
Do it in the full tool
Open Protect PDF for all options, or jump straight to another step below.