01 / Open
Drop the PDF
The page checks whether it needs a password to open.
Free tool
Remove the password from a PDF you know the password to, so it opens straight away next time. A PDF that opens fine but will not let you print, copy text or edit is unlocked without any password. The file never leaves your computer.
The PDF is unlocked in your browser. The file and the password are never uploaded.
How it works
01 / Open
The page checks whether it needs a password to open.
02 / Password
A PDF that opens without one is unlocked right away.
03 / Save
A copy with no password and no limits.
Questions
Only when the password is just an owner password, the kind that lets the file open but blocks printing, copying or editing. A PDF that asks for a password before it opens is encrypted with it, so this page needs that password; it does not try to guess or break it.
Removing a password from your own documents, or ones you have the right to use, is normal. Do not use it to get around limits on files you are not allowed to change or share.
No. The pages, text, pictures, links and form fields stay the same; only the encryption and the limits are removed.
qpdf, a widely used open source PDF tool (Apache 2.0 licence), compiled to run inside your browser.
No. Both stay in this tab, so it is safe for bank statements, payslips and other private files.