About File Format(s): The AI file type is primarily associated with ‘Illustrator’ by Adobe Systems Incorporated. Adobe Illustrator is a vector-based drawing program developed and marketed by Adobe Systems. Drawing created with Adobe Illustrator, a vector graphics editing program; composed of paths connected by points, commonly used for logos and print media. Since Illustrator image files are saved in a vector format, they can be enlarged without losing any image quality. The EPS file type is primarily associated with ‘Encapsulated PostScript’. EPS files are supported by several different drawing programs and vector graphic editing applications such as Adobe illustrator and Photoshop.