🔓 Remove Password
Removes owner/restriction passwords (print, copy, edit locks) from PDFs that open without a prompt.
Scope of this tool: it only works on classic RC4-encrypted PDFs where the file
already opens without asking for a password (i.e. it's restricted, not locked).
It cannot crack a real, unknown open-password, and it does not support AES-encrypted PDFs
(common in newer Acrobat exports) — for those, a desktop tool like
qpdf is needed.