Password-protect a PDF — encrypted on your device
DocsArc encrypts your PDF and adds a password on your own device, so the document can only be opened by someone who knows it.
Sending a file to a random "protect PDF" website to encrypt it rather defeats the purpose. DocsArc never uploads your PDF or your password — the encryption is done locally and the protected file is yours alone.
Try it now — free
Runs on your device. Your file is never uploaded.
Why use DocsArc for this
Real encryption
The exported PDF is genuinely encrypted, so it requires the password to open in any reader.
Password never leaves your device
Both the file and the password you set stay local — nothing is transmitted.
Unlock too
Already know the password? DocsArc can also remove protection from a PDF you own.
How to password protect pdf with DocsArc
- 1Open the PDF you want to secure in DocsArc.
- 2Set an open password and apply encryption.
- 3Export the protected PDF — encrypted locally on your machine.
- 4Share it; recipients need the password to open it.
Frequently asked questions
Is the PDF really encrypted, or just flagged?
Really encrypted. The exported file requires the password to open in any standard PDF reader.
Does my password get uploaded?
No. The file and the password are processed entirely in your browser; neither is sent to a server.
Can I remove a password I set earlier?
Yes. If you know the password, DocsArc can also unlock and remove protection from your PDF.