# Image::ExifTool::Photoshop - phpMan

## 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 2003-2022, Phil Harvey (philharvey66 at gmail.com)

    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/>>

## SEE ALSO
    "Photoshop Tags" in [Image::ExifTool::TagNames], Image::[ExifTool(3pm)],
    [Image::MetaData]::[JPEG(3pm)]