EPS (Encapsulated PostScript)

The EPS file format was originally created back in 1987 by the then-founders of Adobe and Aldus. The format went on to become the base format used by Adobe Illustrator. The format started out on Apple Macintoshes, with later adaptations for the Windows Operating System.

An EPS file is a raster graphics file format capable of high-quality rendering without loss of detail when scaled up. The format, although vector-based, also contains a bitmap preview of the final file to enable the computers of the 1980s with limited processing power to easily render a file preview without needing to parse the full vector file.