Upload a PDF, set a password, and download an encrypted copy that requires the password to open.
This tool applies real PDF password protection directly in your browser, so the protected file works in standard PDF viewers without the Python helper.
Drop your PDF here or click to browse
Single PDF only. Maximum file size: 50MB.
File Details
Review the loaded PDF before applying password protection.
File Name-
Original Size-
Total Pages-
Last ResultNo protection yet
Protection Options
Set the password and output file name for the protected PDF.
Use at least 4 characters. Longer passwords are stronger.
Make sure both password fields match before protecting the PDF.
Leave blank to use an automatic file name.
Keep this password somewhere safe. If you lose it, PDFPRO cannot recover it for you later.