Canon PIXMA MX320 Manual page 415

Opening/Editing Password-protected PDF Files
2.
The Password dialog box opens. Enter the password and click OK.
The PDF file opens in the Zoom in dialog box.
Note
To reopen the file after closing the Zoom in dialog box, re-enter the password.
Entering a Password (Permissions Password) to Edit or Print a File
1.
In the View & Use window, select PDF files and click PDF or Print.
2.
To create a PDF file or edit the file, select Create/Edit PDF file on the list. To print
the file, click Print Document.
In the Password dialog box, you will be prompted to enter a password.
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