This software is a free onscreen ruler and reading guide that offers various options for rulers such as woodgrain, stainless steel, see-through plastic or yellow construction, and users have the ability to create their own skins. The software is user-friendly and interactive.

With A Ruler for Windows, you can continue working as you normally would while layering one or more rulers on top of your work. The clear plastic ruler allows you to see through and type underneath it. You can take a snapshot of your whole screen using the special 2x, 3x, and 4x modes. This allows you to measure between very fine points more easily.
The ruler can be resized to an exact length or resized by simply dragging it to the desired length. You can also choose which long edge you prefer the ticks to be placed on. Clicking near a tick will draw a measuring line at an exact location. The ruler length can be toggled on and off and the numbering can be reversed.
Still curious about other features and functions? Simply click the [?] mark button to learn more. Learning to use A Ruler for Windows is a breeze, making it a fun and convenient tool to have. Best of all, it can be used for free on as many computers as you'd like. Give A Ruler for Windows a try and see how it can improve your PC work experience.
Version 3.3.3: added ability to change the thickness of the reading guide
Version 3.3: corrected 4x magnification on large screens plus other minor improvements
Version 3.2: improved german translation
Version 3.1: updated to make program dpi aware (more useful on 4k displays etc.)
Version 3.0.5: changed to use dot net framework 4.0
Version 3.0.4: improvements to French translation
Version 2.4.1: a minor tweak
Version 2.4: added divide into third lines
Version 2.2.3: correct naming of skins download from website
Version 2.1: added auto-hide of controls on reading guide