Supermag

Super Magnifier is a free magnifier and a screen ruler. So, if you have this software, you don’t need a separate screen ruler software You can zoom to 1x, 2x, 4x, and 8x level. It is resizable. It uses various mouse gestures to operate. You can take the measurement of the screen. It can be used as a color picker also. It has various shortcut keys to operate.

Free, No Ads, No Spyware

Open Source Project (GPL)

Interface language: English

exact measurement

zoom: 1x, 2x, 4x, 8x

opacity

resizeable

color picker

screenshot of area

easy mouse handling

shortcuts for all functions

Download, unzip and start supermag.exe, thats all.
For help (shortcuts, additional informations), read the included help file.