Introduction

PDF files have become as commonplace as MS office files. Sometimes sensitive information is on these files and one needs to be able to protect the files from unauthorized users. Out of security consideration, if you encrypt your PDF file, it is hard for others to change the file content. Advanced PDF Utilities Free is able to add/remove a password to your PDF or remove it.

Step 1. Add Password

To add password to a PDF file:

Launch Advanced PDF Utilities Free and click "Tools" tab. Click "Add Password" to choose a PDF file and then click "OK" to activate "Apply Password" dialog. Enter the password and then re-enter it to confirm. Click "OK" to select an output folder for the encrypted PDF file.

Step 2. Remove Password

To remove password of encrypted PDF file:

Launch Advanced PDF Utilities Free and click "Tools" tab. Click "Remove Open Password" to load a encrypted PDF file. Enter the password in the "Remove Password" dialog and click "OK" to select an output folder for the PDF file with password removed.

Step 3. View Security Details

If you want to view the security status of the PDF file, click "View Security Details" button.