NAME

       Image::ExifTool::Photoshop - Read/write Photoshop IRB meta information

SYNOPSIS

       This module is loaded automatically by Image::ExifTool when required.

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.

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.

AUTHOR

       Copyright 2003-2014, Phil Harvey (phil at owl.phy.queensu.ca)

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

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/PhotoshopFileFormats.htm>

SEE ALSO

       "Photoshop Tags" in Image::ExifTool::TagNames, Image::ExifTool(3pm),
       Image::MetaData::JPEG(3pm)