| Format introduction | Adobe Illustrator Artwork (AI) is a proprietary file format developed by Adobe Systems for representing single-page vector-based drawings in either the EPS or PDF formats. The .ai filename extension is used by Adobe Illustrator. The AI file format was originally a native format called PGF. PDF compatibility is achieved by embedding a complete copy of the PGF data within the saved PDF format file. |
| Technical details | The same "dual path" approach as for PGF is used when saving EPS-compatible files in recent versions of Illustrator. Early versions of the AI file format are true EPS files with a restricted, compact syntax, with additional semantics represented by Illustrator-specific DSC comments that conform to DSC's Open Structuring Conventions. |
| File extension | .ai |
| MIME | application/postscript |
| Developed by | Adobe Systems |
| Type of format | Vector image format |
| Associated programs | Adobe After Effects, Cinema 4D, CorelDRAW, Corel Paint Shop Pro, Ghostscript, Inkscape. |
| Wiki | https://en.wikipedia.org/wiki/Adobe_Illustrator_Artwork |