Password Protect a PDF
Use the free PDF encryption tool to add an open password to any PDF and download a real password-protected .pdf file in the same format.
What the tool does
Same format out
The result is still a PDF. No archive wrapping, no file extension switch, no ZIP workaround.
Simple workflow
Upload the PDF, choose a password, download the protected file. That is the entire flow.
Free to use
This page exists for users searching for free PDF encryption and password-protect PDF queries.
Best next step
If your goal is protection, use free PDF encryption. If your goal is opening a locked file, switch to the free PDF password check.
Encrypt a PDF
Free, no signup. The output stays a real .pdf with an open password applied.
Related guides
For authorized owner use only. Recovery depends on the exact file and password; no outcome is guaranteed. FilesUnlock is a separate product from the recovery service that processes submissions.