Canon PIXMA MG6320 Online Manual page 167

The Password dialog box appears.
Note
Thumbnails of PDF files with Document Open Password set appear as lock marks. When only
Permissions Password is set, it appears as a standard thumbnail.
2. Enter the password, then click OK.
The Create/Edit PDF File view or print settings dialog box appears and you can handle PDF files.
Create/Edit PDF File View
Print Settings Dialog Box
Important
When a password-protected PDF file is edited, the passwords will be deleted. Reset the password in
the Password Security Settings dialog box.
Setting Passwords for PDF Files
Note
When Document Open Password is also set, you need to enter Document Open Password before
entering Permissions Password.