Protect PDF with password
Add a password to a PDF with strong AES-256 encryption, and optionally block printing, copying or editing.
Frequently asked questions
How strong is the password protection?
The PDF is encrypted with AES-256, the strongest standard PDF encryption. It opens in Adobe Reader, Chrome, Edge, phone PDF viewers and all modern apps after typing the password.
What do the print, copy and edit options do?
They set PDF permissions. Most PDF readers will refuse to print, copy text or edit when you untick them. Add an owner password if you want to be able to lift these limits later.
Is Protect PDF with password free?
Yes. Protect PDF with password is free to use. You get 3 free conversions a day without an account, and unlimited use when you sign in with Google.
Are my files uploaded?
No. The conversion runs inside your browser, so your files stay on your device and are never sent to our servers.
Does it work on mobile?
Yes. PixKaro works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows and Mac.