This would be a fairly large file, and could take a long time to download, annoying your customers. This allows very fine control of colors, shapes, shadings, etc, but can make editing difficult, since bitmapped formats loose all information about whether a shape is a line or another shape, or text, and so on. A typical editing task is to change the color of certain pixels, one by one, for example to sharpen an edge. Vector graphic Besides bitmapped graphics, the other general category for graphics files is vector graphics. This makes vector graphics formats easier to edit.
Engineering graphics are universally vector files.
Typically, editing a vector file involves selecting a shape and moving it, rotating it, or similar operations. All Web graphics, however, are bitmapped formats. This is the most popular Web graphic format, and is identified by the extension gif. It is the format of choice for shapes with mostly solid colors, rather than color gradients. It is also unique in supporting several useful effects, described below.