On Fri, Sep 19, 2014 at 6:36 AM, Krista D. Casada <[log in to unmask]> wrote: > I have similar problems. What precisely does a vector graphic editor do? Vector graphics are graphics where shapes are defined as sets of connected points, as opposed to raster graphics where an image consists of a grid of pixels (a "bitmap"). Photoshop is a raster graphics program (conventionally called a "paint program"), while Adobe Illustrator is an example of a vector graphics editor. The advantages of vector graphics are that they can be easily shrunk or blown up without any loss of quality, and lines are always straight and curves are always smooth (since they are created by mathematical functions rather than following the physical movement of a person's hand); the disadvantages are that they're less intuitive the use (using a "paintbrush" pointer is fairly easy to understand, but molding 2D objects is odd), and that it's very difficult to give an image an "organic" hand-drawn look (most vector graphics are relatively low on fine detail). Outline fonts, like PostScript and OpenType (most fonts these days) are essentially sets of vector graphics with some additional features.