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Beginning with version 9, the Adobe Illustrated ai file format included both a pdf copy of the illustration and a postscript copy.</FormatDescription>
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      <ProvenanceName>Georgia Tech Research Institute / Georgia Tech Research Institute</ProvenanceName>
      <ProvenanceSourceDate>19 Jul 2013</ProvenanceSourceDate>
      <ProvenanceDescription>08/2023 ( v113)- Signature file updated. Submitted by Brigham Young University as part of research to be found here: https://preservation.tylerthorsted.com/2023/04/07/adobe-illustrator-and-pdf</ProvenanceDescription>
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      <FormatNote>http://justsolve.archiveteam.org/wiki/Adobe_Illustrator_Artwork

https://en.wikipedia.org/wiki/Adobe_Illustrator_Artwork

https://www.adobe.com/creativecloud/file-types/image/vector/ai-file.html</FormatNote>
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        <SignatureNote>Header PDF-1.4. Comment %!PS-Adobe-3.0 declares that the file contains a Postscript program. The comment “%AI5_FileFormat 7” indicates that the format is that of a version 11.0 Adobe Illustrator file.</SignatureNote>
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