On the Acrobat on the web homepage, select Edit > Protect a PDF.
Last updated on
9 April 2026
Learn how to add password security to a PDF.
You can secure your PDF files by easily setting passwords through Acrobat on the web tool. This ensures your documents remain private and protected from unauthorized access.
Note
After setting the password, users must provide the password to view the PDF.
In the dialog box that opens, select the file location from the top menu, select the file you want to protect, and then select Continue.
In the Protect PDF dialog box that opens, type the password in the Set password field and re-enter it in the Confirm password field.
Select Set password.
Tip
You can access recently secured files in the Recent section of the Home page.
A secured copy of your PDF, labeled <filename>_protected, is saved on Adobe cloud storage. The password-protected PDF loads with a prompt to enter the password to access it.
