ZoomIt is not available for Linux but there are a few alternatives that runs on Linux with similar functionality. The most popular Linux alternative is 
Virtual Magnifying Glass, which is both free and Open Source. If that doesn't work for you, our users have ranked 13 alternatives to ZoomIt, but unfortunately only two of them are available for Linux. If you can't find an alternative you can try to filter for web or SaaS options.
ZoomIt is a screen zoom and annotation tool for technical presentations that include application demonstrations. If you're looking for more info about ZoomIt like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.
Virtual Magnifying Glass, a free, open source, screen magnification program for Windows, Linux, FreeBSD and Mac OS X. Free full version download and instructions for use. Latest Features: New, much improved dynamic mode for Windows 2000+! No longer requires DirectX or a special video card. New, improved Mac OS X version, much smaller, no longer requires Qt. Show the center pixel's RGB values, in both decimal and hexadecimal.
The Enhanced Zoom Desktop plugin allows the whole screen to be zoomed in for improved legibility. It is possible to continue working with other applications while zoomed in.
