Avinctor myRuler virtual desktop rullermyRuler is a virtual ruler, that can be used to measure pixels, centimeters or inches on your desktop.
It offers several useful features that allow you to restrict movement to vertical or horizontal paths. The scale also allows you to measure based on resolution of images that will be printed.
When you use demo version you can not do some things. Namely: you only can measure in pixels. If you will buy license then you can do all things with out any problem.