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Unlock PDF
Unlock PDF removes the password and permission restrictions from a document you supply the correct password for, producing a clean, unencrypted copy you can edit, merge or print. Use it only on files you own or are explicitly authorised to modify.
How to use Unlock PDF
- Upload the protected PDF.
- Enter the password that opens the document.
- Generate the unlocked copy and download it.
Where Unlock PDF is useful
- Removing an old password from your own archived documents.
- Preparing a client-provided file for merging after receiving the password.
- Restoring edit rights on a document that was over-restricted by an export tool.
Formats, algorithms and limits
The tool decrypts with the supplied password and rewrites the file without the security dictionary, which also clears the permission flags such as no-copy or no-print. The page content is copied rather than re-rendered, so nothing is lost in the process.
Troubleshooting and honest limits
- Without the correct password the tool cannot help — PDF encryption is designed to resist exactly that.
- Work on a copy and keep the protected original if you need it for compliance records.
- Only remove protection from documents you are entitled to modify; doing otherwise may breach a licence or law.
Frequently asked questions
Can this tool crack a PDF I do not have the password for?
No, and it is not designed to. It applies a password you legitimately hold so the resulting file is unencrypted. Bypassing encryption you do not hold is intentionally out of scope.
Does unlocking change the document content?
No. Pages are copied as they are, so layout, images and selectable text remain identical — only the security layer is removed.
Why does my file still ask for a password?
The password was probably incorrect and the tool fell back to a partially readable file, or the document uses an unsupported encryption variant. Double-check the password and try once more.
Is it legal to unlock a PDF?
It is legal for documents you own or are authorised to modify, such as your own statements or files a client sent with the password. Removing protection from third-party content can violate licence terms.
Related tools
Page written and reviewed by the FreeConvertio engineering team on 2026-10-14. Unlock PDF runs entirely in your browser — no uploads, no account and no daily limits.