What happens to my file?

It's sent to the server, processed in a temporary folder, returned to you, and deleted right away. Nothing is kept and nothing is shared.

How strong is the encryption?

It uses AES-256, the current industry standard, applied with qpdf on the server.

Yes, completely free, with no account and no sign-up.

Lock a PDF with a password — opening it later requires the password.

Runs on the server

Note: Uses strong AES-256 encryption (the industry standard). Available in the self-hosted build.

Drop a PDF file here, or click to choose

.pdf · up to 100.0 MB

What happens to my file?: It's sent to the server, processed in a temporary folder, returned to you, and deleted right away. Nothing is kept and nothing is shared.
How strong is the encryption?: It uses AES-256, the current industry standard, applied with qpdf on the server.
Is it free?: Yes, completely free, with no account and no sign-up.