Banks, payroll systems and government portals often send PDFs locked with a password, typically your date of birth or part of an account number. That is sensible in transit, but tiresome when the same statement has to be opened twenty times, attached to a loan application, or merged with other documents. Other PDFs open fine yet refuse to print or let you copy a paragraph. This tool saves an unprotected copy in both cases.
Everything happens in your browser. Type the password you already know, press Convert, and a decrypted copy named with -unlocked.pdf is created on your device. The original stays untouched, and neither the file nor the password is sent anywhere.
What unlocking a PDF can and cannot do
There are two situations. If the PDF asks for a password before it shows anything, its content is encrypted, and only the right password can decrypt it. Either password works here: the open (user) password or the permissions (owner) password. This tool does not guess, crack or bypass such a password. If you have forgotten it, the honest answer is to ask the sender for a new copy.
If the PDF opens without a password but blocks printing, copying or editing, it carries owner restrictions. The content is encrypted with a key anyone can derive, and the restrictions are flags that viewers are asked to respect. These can be removed without knowing the permissions password, so leave the Password box empty. If you typed one anyway, the tool notices that none was needed and unlocks the file regardless.
When to remove a PDF password
Statements you open again and again
Monthly e-statements and payslips protected with a birth date are safe enough on your own encrypted laptop. An unlocked copy opens instantly and can be indexed by your computer's search.
Preparing files for other PDF tools
Merging, splitting, compressing, numbering pages or filling a form all need to rewrite the document, and most tools refuse an encrypted file. Unlock it first, do the work, then add a fresh password with Protect PDF if it is still needed.
Printing or quoting a restricted document
A manual you bought, your own exported report or a form you must print may arrive with printing or copying switched off. When you are entitled to use it that way, removing the restriction saves retyping.
Decryption with qpdf in your browser
The unlocking is done by qpdf, an open-source PDF transformation library, compiled to WebAssembly and run in a Web Worker. Its 1.3 MB engine downloads from this site the first time you unlock a file. qpdf reads the encryption dictionary, checks the password, decrypts every stream and string, and writes a new PDF with no encryption and no permission flags. Pages, fonts, images, bookmarks and form fields are kept, because the document is decrypted rather than redrawn.
It handles the encryption methods PDF writers have used over the years: 40-bit and 128-bit RC4, 128-bit AES and 256-bit AES. A wrong password produces a clear message saying it does not open the file, and an empty password on a file that needs one asks you to type it. The Password box is a hidden password field that is never saved in your browser's storage.
طريقة الاستخدام
- Drop the locked PDF on the box above, or click Choose files. Several files with the same password can go in together.
- Type the password in the Password box. Leave it empty if the file opens without one and only blocks printing, copying or editing.
- Press Convert. A wrong password shows an error; correct it and press Convert again.
- Download the unlocked PDF, or use Download all (.zip) for several files.
Limitations and responsible use
- Only unlock files you own or have permission to change. Removing protection from someone else's document can breach copyright, a licence or a confidentiality agreement.
- A forgotten open password cannot be recovered. There is no brute-force or password-guessing feature.
- Files protected with certificates or with DRM systems such as Adobe LiveCycle or FileOpen use a different mechanism and cannot be unlocked here.
- One password is used for every file in a batch; files with different passwords need separate runs.
- The unlocked copy is readable by anyone who gets it, so keep it on a device you trust.