Adobe Illustrator Artwork

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File Format
Name Adobe Illustrator Artwork
Extension(s) .ai
PRONOM fmt/565, others
Released 1987

Adobe Illustrator Artwork (AI) is a proprietary vector graphics format used by the Adobe Illustrator program.

The original format of these files was known as "PGF", but it was later embedded in a PDF wrapper for compatibility with that format. The format is also related to Encapsulated PostScript (EPS), and some versions of the file format are made to be compatible with that. Some forms of the file have multiple versions of the data embedded in it for multi-format compatibility.


Version Ext. PRONOM
1.0 / 1.1 .ai x-fmt/20
88 .ai fmt/417
3.0 / 3.2 .ai fmt/418
4.0 .ai fmt/419
5.0 / 5.5 .ai fmt/420
Japan .ai fmt/421
6.0 .ai fmt/422
7.0 .ai fmt/423
8.0 .ai fmt/557
9.0 .ai, .pdf fmt/558
10.0 .ai, .pdf fmt/559
11.0 .ai, .pdf fmt/560
12.0 .ai, .pdf fmt/561
13.0 .ai, .pdf fmt/562
14.0 .ai, .pdf fmt/563
15.0 .ai, .pdf fmt/564
16.0 .ai, .pdf fmt/565


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