File formats are an important part of reprographics, they govern the possibilities of the files. For example, if the file you generate is an EPSF (encapsulated postscipt file) is a format that can retain postscript information as well as bitmap, it can retain things like a 5th colour, clipping paths, embedded fonts etc. Whereas Tiff files are pure bitmap files and only retain pixel information, they are usually very reliable. EPS’s can give better compression because the more of the file you can keep as vectors (outlines) the more compression you can get. File formats become less of a problem when you are dealing with internal workflows because the file formats are all generated on-the-fly and within the system.