Most online unlock tools require an account, limit how many files you can process per day, or add a watermark. Dely PDF has none of that, and the entire process runs locally in your browser instead of on a server.

No. Dely PDF only verifies a password you already know and removes the protection if it's correct. It cannot recover, guess, or crack a forgotten password.

Some PDFs use two separate passwords: one to open the file, and a separate permissions (owner) password to remove restrictions like printing or copying. If you only know the open password, you can view the file, but the permissions password is still required to fully unlock it.

Unlock only makes sense on an encrypted PDF. If your file isn't locked, there's no password to remove, so Dely PDF lets you know right away instead of processing it for nothing.

Not yet. Unlock currently processes one PDF at a time. If you need to unlock several files, repeat the process for each one.

No. Both your file and your password stay in your browser the entire time, nothing is uploaded to a server.