Exiting full screen

Hello,

Thanks for viewing my message.

I have a PDF document which is set to open in full screen, with the window and menu controls hidden (initial view settings). On the last page I would like to add a script/button for the user to be able to close the document and have the menu/window controls restored. Can anyone explain (step by step pls - I'm a beginner) how I can do this?

Thanks in advance

Jim