I wonder if you know TouchZoomDesktop. While it focus on touch input, it can be used with mouse/keyboard as well and offers easy zooming of the whole screen. I

I wonder if you know TouchZoomDesktop. While it focus on touch input, it can be used with mouse/keyboard as well and offers easy zooming of the whole screen. I use it in presentations. http://www.lovesummertrue.com/touchzoomdesktop/en-us/ http://www.lovesummertrue.com/touchzoomdesktop/en-us/