Ai file type is associated as “Illustrator” by Adobe Systems Inc. Ai or Adobe Illustrator is a vector-based drawing program, developed by Adobe Systems. Ai file extension representing single-page vector-based drawings in either the EPS or PDF formats.
Early versions of AI file extensions are EPS files but with restricted, compact syntax and additional semantics represented by Illustrator-specific DSC comments that conform to DSC's Open Structuring Conventions.
Recent versions of AI file format, same as PDF based formats and recent EPS file formats, are based on the native format that is called PGF and that is not related to both EPS and PDF.
Ai viewer is free software that supports .ai graphic files, display preview images, provides options to convert and save opened image in other file formats as JPEG, Bitmap, GIF, PNG and other extensions. Dispute converting in other file formats, AI viewer supports resizing of AI image, enlarge or reduce, without losing any quality.