How to password-protect a PDF without Adobe Acrobat

You do not need a desktop PDF subscription just to add password protection to a PDF. A browser-local tool can prepare the file on the device and return a protected copy.

Protect a single PDF

  1. Open SecurePDF and choose the PDF.
  2. Keep password protection enabled.
  3. Process the document in the browser.
  4. Copy the generated password and download the protected file.
  5. Test the output in your usual PDF reader.

One file per browser per day can be processed without an account, and a free account allows three per day.

For repeat work

Pro adds batch processing, configurable password rules and visible watermarking for legal, insurance, payroll, client and staff document workflows.

Know what the tool does

SecurePDF adds opening protection to the PDF. It is not an editor, signing platform or document portal.