The National Archives
Search our website
  • Search our website
  • Search our records
   
 
Image of software box and CD PRONOM
Welcome (PRONOM  home page) About PRONOM Add an entry
Search Help - opens in a new window Information resources - opens in a new window
 
 
 

*Details: File format summary

   
 

 

Search by keyword Search by file format Search by PUID Search by software Search by vendor Search by lifecycles Search by Migration Pathway

Details for:

Save as... XML | CSV Printer friendly version
 
Go to:  Summary  |  Documentation  |  Signatures |  Compression  |  Character encoding  |  Rights  |  Reference files   Properties  
 

Signatures

External signatures File extension: ai
Internal signatures
Name 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.
Byte sequences
Position type Absolute from BOF
Offset 0
Maximum Offset 0
Byte order  
Value 252150532D41646F62652D322E30{1-16}252543726561746F72(3A|3A20)41646F626520496C6C7573747261746F72(28544D29203838|20383828544D29)
Name 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
Byte sequences
Position type Absolute from BOF
Offset 0
Maximum Offset 0
Byte order  
Value 252150532D41646F62652D322E3020455053462D312E32{10-2096}2525446F63756D656E7450726F63536574733A41646F62655F496C6C7573747261746F725F3838
Name 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
Byte sequences
Position type Absolute from BOF
Offset 0
Maximum Offset 0
Byte order  
Value 252150532D41646F62652D322E3020455053462D312E32{10-2096}2525446F63756D656E7450726F63536574733A2041646F62655F496C6C7573747261746F72(5F3838|3838)
Top of page Top of page
 
         
The National Archives Newsletter Icon

Send me The National Archives’ newsletter

A monthly round-up of news, blogs, offers and events.