KMag is described as 'Small utility for Linux to magnify a part of the screen. KMag is very useful for people with visual disabilities and for those working in the fields of image analysis, web development etc' and is a screen magnifier in the os & utilities category. There are more than 10 alternatives to KMag for a variety of platforms, including Windows, Mac, Linux, PortableApps.com and Ubuntu apps. The best KMag alternative is ZoomIt, which is free. Other great apps like KMag are Magnifixer, Virtual Magnifying Glass, WindowWatcher and Glassbrick.
The absolutely best for Linux with Wine-Emulator. The screen magnifier is the most similar to that of MS-Windows original magnifier! Better as the fucking Linux-KMag.