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Format

Adobe Illustrator

Summary

Name
Adobe Illustrator
Version
4.0
Identifiers
  • MIME: application/postscript
  • Apple Uniform Type Identifier: com.adobe.illustrator-image
  • PUID: fmt/419
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 4.0

Description
The first line of the file declares that the file contains a Postscript program and identifies the version of the Document Structuring Conventions to which the document conforms as 3.0. In version 4.0 files, the Creator Comment contains the string “Adobe Illustrator (TM) for Windows, version 4”
Provenance
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
252150532D41646F62652D332E30{1-128}252543726561746F723A2041646F626520496C6C7573747261746F7228544D2920666F722057696E646F77732C2076657273696F6E20342E30
Endianness
None

Changelog

  • V89

    Release date
    8 March 2017
    • Updated

      Adobe Illustrator v4: Added mimetype - application/postscript

  • V69

    Release date
    19 July 2013
    • Added signature

      Adobe Illustrator 4.0: Signature provided by Georgia Technology Research Institute.

  • V60

    Release date
    11 June 2012
    • Added format

      Adobe Illustrator 4.0: Description information submitted by the National Archives and Records Administration. Partial entry added.