With this settings is possible to setup security for a PDF generated (Output Document).
In Output Document setup there is a new section available when the output document is either PDF or BOTH with the following fields:
Permissions: Must select wich permissions will be granted (if none is selected only VIEW is allowed)
Open Password: Is the password requested to open the document. (This open the document with selected permissions)
Owner Password: Is the password that allow owner to open and change permissions