Unlock a PDF
Remove a password you already know from a PDF, entirely in your browser. Nothing is uploaded.
How it works
- Add the password-protected PDF.
- Enter the current password.
- Select Unlock and review.
Limits
Processed locally on your device. Your file and password are never uploaded to SumoPDF, and SumoPDF does not receive or store them. Removes a password you KNOW from a PDF with qpdf, entirely in your browser. This is NOT password cracking or recovery: you must enter the correct current password, and should only unlock documents you are authorized to. Beta limits: desktop up to 40 MB and 400 pages; mobile up to 15 MB and 150 pages.
Common questions
Is it secure to enter my PDF password online to remove it?
Yes, it is secure because your password and your file are never sent to a server. The entire unlocking process happens in your browser on your device. Your password is only used locally to decrypt the file.
Can this tool remove a password that I do not know?
No, this tool cannot crack or remove a password that you do not know. You must have the correct current password to open and decrypt the PDF. The tool then saves a new version of the file without the password requirement.
Can I unlock a PDF that is more than 25 pages long?
Using the free tool, you can remove a known password from a PDF that is up to 25 pages long. To unlock larger documents, you will need to subscribe to a paid plan, which has no page limits.
What happens to my original password-protected file?
Your original file remains unchanged on your computer. This tool creates a new, unlocked copy of the PDF that you can download. You will have both the original protected version and the new unprotected version.
