Image::ExifTool::Photoshop - Read/write Photoshop IRB meta information
Contents
Description
Photoshop writes its own format of meta information called a Photoshop IRB resource which is located in
the APP13 record of JPEG files. This module contains the definitions to read this information.
Name
Image::ExifTool::Photoshop - Read/write Photoshop IRB meta information
Notes
Photoshop IRB blocks may have an associated resource name. These names are usually just an empty string,
but if not empty they are displayed in the verbose level 2 (or greater) output. A special
"SetResourceName" flag may be set to '1' in the tag information hash to cause the resource name to be
appended to the value when extracted. If this is done, the returned value has the form "VALUE/#NAME#/".
When writing, the writer routine looks for this syntax (if "SetResourceName" is defined), and and uses
the embedded name to set the name of the new resource. This allows the resource names to be preserved
when copying Photoshop information via user-defined tags.
References
<http://www.fine-view.com/jp/lab/doc/ps6ffspecsv2.pdf>
<http://www.ozhiker.com/electronics/pjmt/jpeg_info/irb_jpeg_qual.html>
<http://www.fileformat.info/format/psd/egff.htm>
<http://libpsd.graphest.com/files/Photoshop%20File%20Formats.pdf>
<http://www.adobe.com/devnet-apps/photoshop/fileformatashtml/>
See Also
"Photoshop Tags" in Image::ExifTool::TagNames, Image::ExifTool(3pm), Image::MetaData::JPEG(3pm)
perl v5.40.1 2025-03-16 Image::ExifTool::Photoshop(3pm)
Synopsis
This module is loaded automatically by Image::ExifTool when required.
