Specifications

ReferenceDescriptionFormat
Exif Version 2.2 specification dated
April 2002 (JEITA CP-3451)
A binary format designed to store
information about a photograph
Generated by all digital cameras and used
by many desktop applications and asset
management systems
EXIF
IPTC – NAA Information
Interchange Model Version 4
dated July 1999
A binary format designed to store
news-related information in photographs
Used by many applications including asset
management systems
IPTC
IPTC Core Schema for XMP Version
1.0 Revision 8 dated March 2005
Adobe XMP specification dated
September 2005
An XML-based format defined by Adobe
Embedded in images or compound
documents; used by Adobe Creative Suite
and many other applications
XMP
Also see "Supported file formats" below.
Read-only access through variables
Switch allows the use of variables in the values of many text properties and for defining file
filters. Variables provide access to run-time information about a job including embedded metadata
fields.
Examples of embedded metadata fields that can be accessed through variables include:
Metadata formatType of informationGroup
XMPTitle, keywords, author(s), copyright termsDoc
IPTCContact, location, headline, instructionsIPTC
EXIF (TIFF tags)Resolution, orientation, color modeImage
EXIF (EXIF tags)Exposure time, aperture, focus, flashPhoto
Read-write access through scripting
PowerSwitch offers complete access to embedded metadata through the scripting API:
• The Job.getEmbeddedDataset() function retrieves a dataset object representing the job's
embedded metadata.
• The XMP data model query functions allow reading fields in the embedded dataset.
• The XMP data model update functions allow writing or updating fields in the embedded
dataset for certain supported file formats.
Rather than providing separate data models for each embedded metadata format, Switch
synchronizes the binary EXIF and IPTC tags with the XMP properties – offering a unified view of
all metadata using the XMP data model. See Supported file formats on page 313.
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