When i work on any program, i like to see the window in fullscreen mode. While using adobe reader, i know the keyboard shortcuts for page-up, page-down, zoom-in, zoom-out etc.
Hence i don't need to see the toolbars and menubar which unnecessarily occupy viewing space for me.
To enter fullscreen mode, i use Ctrl + L
Here are the keyboard shortcuts that i use for increasing the viewing space.
F8 -> Hide Toolbar
F9 -> Hide Menubar
F8 + F9 -> Get maximum viewing space without enter fullscreen mode.
