MIME:
application/postscript Apple Uniform Type Identifier:
com.adobe.illustrator-image PUID:
fmt/420
Family
Classification
Image (Vector)
Disclosure
Description
The documents (files) created by Adobe Illustrator are PostScript language
documents. A PostScript language document description that minimally conforms to the Document Structuring Conventions has two main parts: a prolog and a script. The prolog encapsulates information needed by other programs to interpret the file. The script describes the graphic elements on the page.
Specification available at http://mercator.elte.hu/~saman/hu/okt/AI7FileFormat.pdf
Adobe has classified Illustrator Versions 5.0 and 5.5 as the same file format.
Version 5.0 includes layers and live editing in preview mode
Version 5.5 includes spell checker, find/replace text