Format
Adobe Illustrator
Summary
- Name
- Adobe Illustrator
- Version
- 1.0 / 1.1
- Identifiers
-
- MIME: application/postscript
- Apple Uniform Type Identifier: com.adobe.illustrator.ai-image
- PUID: x-fmt/20
- 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 1.x 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 and further that the file conforms to version 1.2 of the conventions for Encapsulated PostScript Files. The second line contains a %%Creator comment that identifies version 1.0 as the version of Adobe Illustrator that generated the PostScript document.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
252150532D41646F62652D322E3020455053462D312E320D252543726561746F723A41646F626520496C6C7573747261746F7228544D2920312E30- Endianness
- None
Adobe Illustrator 1.x 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. It may or may not specify EPSF 1.2. The Creator may or may not be Adobe Illustrator, but the DocumentProcsets declared in the header will be Adobe Illustrator 1.0, 1.1 or 1.2
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
252150532D41646F62652D322E30{10-2096}2525446F63756D656E7450726F63536574733A(2041|41)646F62655F496C6C7573747261746F725F312E(30|31|32)- Endianness
- None
Changelog
-
Added in V69
- Release date
- 19 July 2013
Adobe Illustrator 1.0/1.1: Signature provided by Georgia Technology Research Institute.
-
Updated in V62
- Release date
- 28 August 2012
Adobe Illustrator 1.0 and 1.1: MIME-Type information added.
-
Updated in V60
- Release date
- 11 June 2012
Adobe Illustrator 1.0/1.1: Version information added.