This schema specifies the IPTC Extension XMP properties. The IPTC Extension schema extends and complements the IPTC Core schema by a set of more granular properties and further specialized rights related properties from the PLUS metadata schema.

• Exiv2 keys are Xmp.iptcExt.<Property>
• The schema namespace URI is http://iptc.org/std/Iptc4xmpExt/2008-02-29/
• The preferred schema namespace prefix is Iptc4xmpExt

Reference: IPTC Extension Specification Version 1.2 standard

Note: Exiv2 uses iptcExt (rather than Iptc4xmpExt) as the group name for keys of IPTC Extension schema properties.

Property	Label	Value type	Exiv2 type	Category	Description
AddlModelInfo	Additional model info	Text	XmpText	External	Information about the ethnicity and other facts of the model(s) in a model-released image.
OrganisationInImageCode	Code of featured Organisation	bag Text	XmpBag	External	Code from controlled vocabulary for identifying the organisation or company which is featured in the image.
CVterm	Controlled Vocabulary Term	bag URI	XmpBag	External	A term to describe the content of the image by a value from a Controlled Vocabulary.
ModelAge	Model age	bag Integer	XmpBag	External	Age of the human model(s) at the time this image was taken in a model released image.
OrganisationInImageName	Name of featured Organisation	bag Text	XmpBag	External	Name of the organisation or company which is featured in the image.
PersonInImage	Person shown	bag Text	XmpBag	External	Name of a person shown in the image.
DigImageGUID	Digital Image Identifier	Text	XmpText	External	Globally unique identifier for this digital image. It is created and applied by the creator of the digital image at the time of its creation. this value shall not be changed after that time.
DigitalSourcefileType	Physical type of original photo	URI	XmpText	External	The type of the source digital file.
Event	Event	Lang Alt	LangAlt	External	Names or describes the specific event at which the photo was taken.
MaxAvailHeight	Maximum available height	Integer	XmpText	External	The maximum available height in pixels of the original photo from which this photo has been derived by downsizing.
MaxAvailWidth	Maximum available width	Integer	XmpText	External	The maximum available width in pixels of the original photo from which this photo has been derived by downsizing.
RegistryId	Registry Entry	bag RegistryEntryDetails	XmpBag	External	Both a Registry Item Id and a Registry Organisation Id to record any registration of this digital image with a registry.
RegItemId	Registry Entry-Item Identifier	Text	XmpText	External	A unique identifier created by a registry and applied by the creator of the digital image. This value shall not be changed after being applied. This identifier is linked to a corresponding Registry Organisation Identifier.
RegOrgId	Registry Entry-Organisation Identifier	Text	XmpText	External	An identifier for the registry which issued the corresponding Registry Image Id.
IptcLastEdited	IPTC Fields Last Edited	Date	XmpText	External	The date and optionally time when any of the IPTC photo metadata fields has been last edited.
LocationShown	Location Shown	bag LocationDetails	XmpBag	External	A location shown in the image.
LocationCreated	Location Created	bag LocationDetails	XmpBag	External	The location the photo was taken.
City	Location-City	Text	XmpText	External	Name of the city of a location.
CountryCode	Location-Country ISO-Code	Text	XmpText	External	The ISO code of a country of a location.
CountryName	Location-Country Name	Text	XmpText	External	The name of a country of a location.
ProvinceState	Location-Province/State	Text	XmpText	External	The name of a subregion of a country - a province or state - of a location.
Sublocation	Location-Sublocation	Text	XmpText	External	Name of a sublocation. This sublocation name could either be the name of a sublocation to a city or the name of a well known location or (natural) monument outside a city.
WorldRegion	Location-World Region	Text	XmpText	External	The name of a world region of a location.
ArtworkOrObject	Artwork or object in the image	bag ArtworkOrObjectDetails	XmpBag	External	A set of metadata about artwork or an object in the image.
AOCopyrightNotice	Artwork or object-Copyright notice	Text	XmpText	External	Contains any necessary copyright notice for claiming the intellectual property for artwork or an object in the image and should identify the current owner of the copyright of this work with associated intellectual property rights.
AOCreator	Artwork or object-Creator	seq ProperName	XmpSeq	External	Contains the name of the artist who has created artwork or an object in the image. In cases where the artist could or should not be identified the name of a company or organisation may be appropriate.
AODateCreated	Artwork or object-Date Created	Date	XmpText	External	Designates the date and optionally the time the artwork or object in the image was created. This relates to artwork or objects with associated intellectual property rights.
AOSource	Artwork or object-Source	Text	XmpText	External	The organisation or body holding and registering the artwork or object in the image for inventory purposes.
AOSourceInvNo	Artwork or object-Source inventory number	Text	XmpText	External	The inventory number issued by the organisation or body holding and registering the artwork or object in the image.
AOTitle	Artwork or object-Title	Lang Alt	LangAlt	External	A reference for the artwork or object in the image.