Password Protect
Set password on PDF. Right in your browser. 100% free, privacy protected.
Password Protect encrypts a PDF so it cannot be opened without the password you set. Encryption is applied in your browser — the file and the password never travel over the network, which is the whole point when you are securing a payslip, a contract or an ID scan. You can also restrict what someone who does open it is allowed to do, such as printing or copying text. Because the encryption is written into the file itself, the protection travels with the document wherever it is sent or stored.
- Upload Files — Drag and drop your files into the upload area, or click to browse and select files from your device.
- Set Options — Set password on PDF
- Download — Click the download button to save your processed file. It's ready instantly!
Frequently Asked Questions
What happens if I forget the password?
The file cannot be recovered. Encryption is applied to the document itself and PDFox keeps no copy of the password, so store it somewhere safe before you send the file.
Is the password sent to a server?
No. Encryption happens entirely in your browser. Neither the document nor the password leaves your device.
Can I stop people printing or copying text?
Yes. Permission flags for printing, copying and modification can be set separately from the open password. Note that permissions are enforced by the viewer, so they deter casual copying rather than guarantee it.
Will the protected file open everywhere?
Yes. Standard PDF encryption is supported by Acrobat, Preview, browsers and mobile readers alike.
Security
- Unlock PDF — Remove password from PDF
- Redact — Mask sensitive information in PDF