How to Remove or Add a Password to a PDF
A PDF you have to re-enter a password for every time you open it, or a sensitive file you want to lock down before emailing it — here's how to go either direction, right in your browser.
Steps
- Upload your PDF at Stelluna's PDF Password Remove / Add — up to 50MB.
- The right mode is picked for you. An encrypted PDF defaults to remove mode; a normal one defaults to add mode.
- Type the password. The one the PDF already has (to remove it), or a new one (to add it).
- Click the button. Removal only works if the password you typed is correct.
- Download. Your PDF, either unlocked or freshly protected.
Ready to try it? Free, instant, your file never leaves your device.
Open PDF Password Remove / AddCan this crack a password I don't know?
No, and it doesn't try to. This tool removes a password you already know — useful when a PDF keeps prompting you for a password you're tired of typing, but it can't and won't bypass a password you don't have.
FAQ
Is it free?
Yes — no account, no limit on how many times you use it.
Does my PDF or password get uploaded anywhere?
No. The whole process runs entirely in your browser — neither your file nor your password ever leaves your device.
What encryption is used when adding a password?
256-bit AES — the strongest level the PDF standard supports.
What if I forget the password I added?
It isn't stored anywhere by us — if you forget it, the PDF can't be opened. Keep it somewhere safe.
Can I remove a password from a PDF I don't know the password to?
No — this tool only removes a password you already know.