What Is an AI File?The AI file format (ending with .ai) is the proprietary format of Adobe Illustrator, the design industry’s leading software for creating professional vectors and illustrations. As a vector format, AI files do not use pixels. Instead, vectors use lines, shapes, curves, and colors to create scalable images that will remain sharp at any size. Raster or bitmap images, on the other hand, that use pixels will become blurry and lose sharpness if they’re enlarged beyond the original size. For more details on the differences, please see Raster vs. Vector.Graphic designers typically use Illustrator to create logos, icons, illustrations, drawings, and other digital artwork. That work is typically saved in AI format, but Illustrator users do have the option to save or export to other file formats as well.This app will help you can view AI file on Android without Adobe Illustrator. You can also save it into PDF to share with your friends too!