The Security Options view allows you choose from three different encryption levels for your PDFs. You can change the security levels at any time.See Encryption settings for details about each of the three levels of encryption available to you.
- Select PDF Manager menu > Tools > Options. The Options window opens.
- Click the Security Options button. The Security options appear.
Select one of the following Encryption levels from the drop-down:
The Encryption level setting dictates which of the following options on this screen may be changed.
Select or deselect the Permission Options:
Allow filling in form fields
Allow copy for accessibility.
High resolution printing
Low resolution printing.