Unlock a PDF (Remove Password Protection)
Remove the password from a PDF you are authorised to modify, using the password you already know. The unlocked file is re-opened to verify it needs no password.
Use this only on documents you own or are authorised to modify. There is no password guessing, dictionary or brute-force attack here — a wrong password simply fails. Encryption this tool cannot process (for example public-key handlers) is reported and left untouched rather than half-decrypted.
How to use
The whole flow runs in your browser — nothing is uploaded.
- UploadAdd the password-protected PDF.
- Check the protectionThe tool reports the encryption type, whether a password is required and what it can process.
- Enter the passwordSupply the password you already know, and the document is decrypted in your browser.
- Verify and downloadThe result is re-opened to confirm it needs no password, then you download it.
- Every step runs locally in your browser.
Key Features
PDF Password Remover by another name: one engine, one workspace — enter the password you already know and the encryption is removed.
- Verified unlockedThe output is re-opened with an independent reader to confirm it needs no password.
- Content and metadata keptPages, text and the document information are carried across — not stripped.
- Tells you what it foundThe encryption type, handler revision and key length are reported before anything is changed.
- No password crackingThere is no guessing, word list or brute force here — a wrong password simply fails.
Frequently asked questions
No. There is no password guessing, dictionary attack or brute force in this tool, and there never will be. It asks for the password you already know, decrypts the document with it, and fails cleanly if it is wrong.
No. It handles the standard security handler used by almost every password-protected PDF (RC4-40, RC4-128, AES-128 and AES-256). A document protected with a different handler — for example a public-key or certificate-based one — is detected and reported as unsupported instead of being partly processed.
An opening password is needed before any page can be read. Owner or permission restrictions apply to a file that opens without a password and limit printing, copying or editing. The two are reported separately: this tool says which one it found, because removing restrictions is not the same as defeating a password.
Because it is. A PDF can carry an encryption dictionary while its opening password is empty — that is what permission-restricted files are. Such a file opens for anyone, which is why the restrictions can be removed without knowing the owner password. This tool states that plainly rather than implying it broke a password.
Yes — PDF Password Remover and Unlock PDF are two names for this one workflow and one implementation; /pdf-password-remover simply redirects here, so there is a single place to use and a single page to index.
No. A new, unencrypted PDF is written and your original file is left exactly as it was.