Two main categories of images exist: bitmap and vector images. The images you manipulate and see most often are bitmap images. They consist of a set of dots (pixels), each of these dots have one or more values describing its color. Thus, the photos you take with your digital camera or download on the Internet are bitmap images. When you resize them, information is lost: the definition of the image decreases and its components are less accurate. In contrast, vector images are composed of simple geometric objects (arcs, polygons, line segments, …) represented by mathematical formulas. It is thus possible to apply transformations: rotation, expansion, etc…, without loss of quality. Your computer then recalculates the characteristics of each geometric object. In this tutorial I will show you how to convert any of your bitmap images into vector images using free online tool.