Unlocking a PDF means removing the password or the restrictions that stop you from opening, printing, copying or editing it. Doctor PDF removes the encryption so the resulting file opens freely and behaves like a normal PDF — done entirely in your browser.
You provide the open password if the file asks for one to view it; for files that only restrict printing or copying (owner restrictions), no password is needed. The unlocked copy is produced locally and downloaded straight to your device.
The whole process runs inside your browser using a real PDF engine (qpdf) compiled to WebAssembly. Your file and your password are never uploaded to any server, so a sensitive document never leaves your device.
There is no file-size limit and nothing is stored. Please only unlock PDFs you own or have permission to access — this tool removes a known password, it does not crack an unknown one.
Tired of ads, file limits, and uploading your documents to a stranger's server? Doctor PDF is built differently:
Yes. Doctor PDF removes PDF passwords and restrictions 100% free with no limits or sign-up.
No. This tool removes a known open password or owner restrictions from PDFs you have the right to access — it does not crack or guess unknown passwords.
Yes. Everything runs locally in your browser — your files and password are never uploaded to any server.
An open (user) password is needed to view the PDF. Restrictions (owner password) block printing, copying or editing. This tool can remove both when you are allowed to.
Yes, on any modern browser — phone, tablet, or computer.