My problem with Permissions is related to multiple PDF apps. I do not have a single PDF app that will do everything I need. So when I need to do a specific type of editing I will use another PDF app that is not my Default app. After completing the work the Default app will flash the error that "YOU DO NOT HAVE PERMISSION". After trying more things than I want to waste your time with I came upon a solution that for the past 48 hours has worked with no exceptions. Solution: Open the System Preferences. Open the General Preferences. Change the RECENT ITEMS to NONE. Reboot and the problem for me was resolved.