What is the format of eps? What software generated it?
EPS file is actually a collection of PostScript language codes, so it can be printed on PostScript printer in many ways. Software that creates or edits EPS files can define the capacity, resolution, font and other formatting and printing information. This information is embedded in EPS file and then read and processed by printer. There are hundreds of printers that support PostScript language, including all image typesetting systems used in desktop publishing industry.