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Protect PDF

Lock a PDF with a password.

License

Privacy

Processed entirely on your device

Your files never leave your device.

About Protect PDF

Protect PDF locks a PDF so it asks for a password before it opens. You set the password on your device; the file is encrypted in your browser and nothing is uploaded.

  • Send a contract
  • Share ID copies
  • Protect financial records

How to protect PDF

  1. Drop the PDF

    Up to 500 MB.

  2. Set a password

    Choose one you can share safely with the person who needs the file.

  3. Save the locked PDF

    Download the file. Anyone opening it is asked for the password.

Why your file never leaves your device

Most online tools upload your file to a server, work on it there, and keep a copy for a while. Thryve PDF does the work inside your browser instead, with code that runs on your own device, so there is no upload, no copy on a server and nothing to delete afterwards. Close the tab and the file is gone from memory. It also means the tools keep working on a slow connection once the page has loaded.

Questions, answered

What if I forget the password?
The file cannot be opened without it, and Thryve does not keep a copy. Keep the original, unlocked PDF somewhere safe.
Is my PDF uploaded to a server?
No. The PDF is opened and processed inside your browser tab, on your own device, and the result is saved straight back to it. Thryve has no server that receives files.
Is it free?
Yes. This page gives 10 free exports every rolling 30 days, with no account. Thryve Pro, $9.99 once with no subscription, removes the limit on every Thryve PDF, Photo, Media and Invoice page.
Do I need to sign up?
No. Drop a file and start. An account is only needed to buy Thryve Pro, so the licence can follow you between devices.
Does it work on a phone?
Yes, in Chrome, Safari, Edge or Firefox on Android and iPhone, as well as on Windows, Mac and Linux. Since the work happens on the device, a large file takes longer on a phone than on a laptop.

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