The Screen Ruler is a free software developed by WonderWebWare. This Sreen Ruler is a simple tool to measure images or screens. This utility comes handy for web developers, and other professionals such as photographers, architects, or simply for those who want to have accurate information before printing an image. Knowing the size of the image, makes it easier for you to put that image in another document and be aware of how it will fit once you print it. With this simple tool you can measure the images in pixels, centimeters, millimeters and inches. Transparency of the ruler can also be adjusted, the lower the percentage, the lower the transparency. Within the options you can obtain information about the image you are measuring, display the settings, choose what kind of unit measure you want to use, and much more. This application is so easy to use that you do not need any help, but just in case you need some, you can find it on line, on the authors web page. This can be accessed by simply clicking the Help&Feedback option, which directly sends you to the on-line help.