Search tools

Password protect a PDF

Add a password that is needed to open the PDF, with AES-256 encryption. Nothing is uploaded.

Never uploaded AES-256 No ads, no sign-up
Edited on this device, never uploaded

Page

100%

How to password protect a PDF

In short

Drop the PDF, type a password twice, untick anything readers should not do, and press Protect PDF. The saved copy opens only with the password.

  1. Drop the PDF

    Every page shows as a thumbnail.

  2. Set the password

    Type it twice; the eye button shows it.

  3. Choose what is allowed and save

    Printing, copying, editing and comments stay allowed unless you untick them. Press Protect PDF.

Other PDF tasks

More for PDFs

PDF to JPG

PDF to PNG

PDF to text

JPG to PDF

Searchable PDF

PDF viewer

Questions

AES-256, the strongest encryption PDF supports. Acrobat, Preview, Chrome and other current readers open it with the password.

Readers that follow the PDF standard, such as Acrobat, keep to them. Some apps ignore them; the password is what locks the file.

Nobody can open the file, us included: the password never leaves your device.

No. The PDF is encrypted by your browser, on your device.