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Format

Adobe Illustrator

Download XML

Summary

Name
Adobe Illustrator
Version
88
Identifiers
  • MIME: application/postscript
  • Apple Uniform Type Identifier: com.adobe.illustrator-image
  • PUID: fmt/417
Format type
Image (Vector)
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.
File extensions
ai
Source
Georgia Tech Research Institute / Georgia Tech Research Institute
Developed by
Adobe Systems Incorporated
Supported by
Adobe Systems Incorporated

Relationships

Has priority over

Internal signatures

Adobe Illustrator 88 v1

Note
The first line of the file declares with the Comment prefix %! that the file contains a PostScript program. It then specifies that the file conforms to version 2.0 of the Document Structuring Conventions. The second line contains a %%Creator comment that identifies the version of Adobe Illustrator that generated the PostScript document. The Trademark symbol was found both before and after version 88.

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
252150532D41646F62652D322E30{1-16}252543726561746F72(3A|3A20)41646F626520496C6C7573747261746F72(28544D29203838|20383828544D29)
Endianness
None

Adobe Illustrator 88 v2

Note
The first line of the file declares with the Comment prefix %! that the file contains a PostScript program. It then specifies that the file conforms to version 2.0 of the Document Structuring Conventions and further that the file conforms to version 1.2 of the conventions for Encapsulated PostScript Files. In Header DocProcSets: Adobe_Illustrator_88 In Header is DocProcSets: Adobe_Illustrator_88 or Adobe_Illustrator88

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
252150532D41646F62652D322E3020455053462D312E32{10-2096}2525446F63756D656E7450726F63536574733A41646F62655F496C6C7573747261746F725F3838
Endianness
None

Adobe Illustrator 88 v3

Note
The first line of the file declares with the Comment prefix %! that the file contains a PostScript program. It then specifies that the file conforms to version 2.0 of the Document Structuring Conventions and further that the file conforms to version 1.2 of the conventions for Encapsulated PostScript Files. In Header is DocProcSets: Adobe_Illustrator_88 or DocProcSets: Adobe_Illustrator88

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
252150532D41646F62652D322E3020455053462D312E32{10-2096}2525446F63756D656E7450726F63536574733A2041646F62655F496C6C7573747261746F72(5F3838|3838)
Endianness
None

Changelog

  • Updated in V89

    Release date
    8 March 2017

    Adobe Illustrator v88: Added mimetype - application/postscript

  • Added in V69

    Release date
    19 July 2013

    Adobe Illustrator 88: Signature provided by Georgia Technology Research Institute.

  • Added in V60

    Release date
    11 June 2012

    Adobe Illustrator 88: Description information submitted by the National Archives and Records Administration. Partial entry added.