1352 Adobe Illustrator 15.0 Image (Vector) 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. Beginning with version 9, the Adobe Illustrated ai file format included both a pdf copy of the illustration and a postscript copy. Beginning with Adobe Illustrator 13.0. the PDF that Illustrator embeds in the file so that other apps can read the file is PDF 1.5. 165 Georgia Tech Research Institute / Georgia Tech Research Institute 19 Jul 2013 08/2023 ( v113)- Signature file updated. Submitted by Brigham Young University as part of research to be found here: https://preservation.tylerthorsted.com/2023/04/07/adobe-illustrator-and-pdf 24 May 2023 application/postscript MIME com.adobe.illustrator-image Apple Uniform Type Identifier fmt/564 PUID ai File extension pdf File extension 898 Adobe Illustrator 15.0 Header PDF-1.5. Comment %!PS-Adobe-3.0 declares that the file contains a Postscript program. The comment “%AI5_FileFormat 11” indicates that the format is that of a version 15.0 Adobe Illustrator file. 1 Absolute from BOF 0 0 255044462D312E35*3C696C6C7573747261746F723A547970653E446F63756D656E743C2F696C6C7573747261746F723A547970653E*252150532D41646F62652D332E30*254149355F46696C65466F726D6174203131 Has priority over 618 Acrobat PDF 1.5 - Portable Document Format Is previous version of 1353 Adobe Illustrator Is subsequent version of 1351 Adobe Illustrator