Format

Adobe Illustrator

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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

Submitted by

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

Description: 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.
Provenance: http://share.auditory.ru/2011/Dmitry.Burmistrov/computer_graphics-kursovaya/Specifications/archive/AI20/ADOBE_IL.PDF http://partners.adobe.com/public/developer/en/illustrator/sdk/AI7FileFormat.pdf

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

Description: 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
Provenance: http://share.auditory.ru/2011/Dmitry.Burmistrov/computer_graphics-kursovaya/Specifications/archive/AI20/ADOBE_IL.PDF http://partners.adobe.com/public/developer/en/illustrator/sdk/AI7FileFormat.pdf

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

Description: 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
Provenance: http://share.auditory.ru/2011/Dmitry.Burmistrov/computer_graphics-kursovaya/Specifications/archive/AI20/ADOBE_IL.PDF http://partners.adobe.com/public/developer/en/illustrator/sdk/AI7FileFormat.pdf

Byte sequences

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

Changelog

V89

Release date

8 March 2017
- Updated
  
  Adobe Illustrator v88: Added mimetype - application/postscript
V69

Release date

19 July 2013
- Added signature
  
  Adobe Illustrator 88: Signature provided by Georgia Technology Research Institute.
V60

Release date

11 June 2012
- Added format
  
  Adobe Illustrator 88: Description information submitted by the National Archives and Records Administration. Partial entry added.