The additional information gives hints about what the rendered image will look
like. It includes the size (BoundingBox), required library code needed and colour
separations. An EPS file is just a little self-contained PostScript
program that when run, draws an image — on a typesetter, printer or screen. It
may do this programmatically or with voluminous embedded bit maps. This is the most
popular format of graphics file in the typesetting industry. It will render the
precise same image on any device.