IPTC datasets defined in Exiv2

Datasets are defined according to the specification of the IPTC Information Interchange Model (IIM).

Tag (hex) Tag (dec) Key Type M. R. Min. bytes Max. bytes Tag description
0x0000 0 Iptc.Envelope.ModelVersion Short Yes No 2 2 A binary number identifying the version of the Information Interchange Model
0x0005 5 Iptc.Envelope.Destination String No Yes 0 1024 This DataSet is to accommodate some providers who require routing information above the appropriate OSI layers.
0x0014 20 Iptc.Envelope.FileFormat Short Yes No 2 2 A binary number representing the file format. The file format must be registered with IPTC or NAA with a unique number assigned to it. The information is used to route the data to the appropriate system and to allow the receiving system to perform the appropriate actions there to.
0x0016 22 Iptc.Envelope.FileVersion Short Yes No 2 2 A binary number representing the particular version of the File Format specified by <FileFormat> tag.
0x001e 30 Iptc.Envelope.ServiceId String Yes No 0 10 Identifies the provider and product
0x0028 40 Iptc.Envelope.EnvelopeNumber String Yes No 8 8 The characters form a number that will be unique for the date specified in <DateSent> tag and for the Service Identifier specified by <ServiceIdentifier> tag. If identical envelope numbers appear with the same date and with the same Service Identifier
0x0032 50 Iptc.Envelope.ProductId String No Yes 0 32 Allows a provider to identify subsets of its overall service. Used to provide receiving organisation data on which to select
0x003c 60 Iptc.Envelope.EnvelopePriority String No No 1 1 Specifies the envelope handling priority and not the editorial urgency (see <Urgency> tag). "1" indicates the most urgent
0x0046 70 Iptc.Envelope.DateSent Date Yes No 8 8 Uses the format CCYYMMDD (century
0x0050 80 Iptc.Envelope.TimeSent Time No No 11 11 Uses the format HHMMSS:HHMM where HHMMSS refers to local hour
0x005a 90 Iptc.Envelope.CharacterSet String No No 0 32 This tag consisting of one or more control functions used for the announcement
0x0064 100 Iptc.Envelope.UNO String No No 14 80 This tag provide a globally unique identification for objects as specified in the IIM
0x0078 120 Iptc.Envelope.ARMId Short No No 2 2 The DataSet identifies the Abstract Relationship Method identifier (ARM) which is described in a document registered by the originator of the ARM with the IPTC and NAA organizations.
0x007a 122 Iptc.Envelope.ARMVersion Short No No 2 2 This tag consisting of a binary number representing the particular version of the ARM specified by tag <ARMId>.
0x0000 0 Iptc.Application2.RecordVersion Short Yes No 2 2 A binary number identifying the version of the Information Interchange Model
0x0003 3 Iptc.Application2.ObjectType String No No 3 67 The Object Type is used to distinguish between different types of objects within the IIM. The first part is a number representing a language independent international reference to an Object Type followed by a colon separator. The second part
0x0004 4 Iptc.Application2.ObjectAttribute String No Yes 4 68 The Object Attribute defines the nature of the object independent of the Subject. The first part is a number representing a language independent international reference to an Object Attribute followed by a colon separator. The second part
0x0005 5 Iptc.Application2.ObjectName String No No 0 64 Used as a shorthand reference for the object. Changes to exist-ing data
0x0007 7 Iptc.Application2.EditStatus String No No 0 64 Status of the object data
0x0008 8 Iptc.Application2.EditorialUpdate String No No 2 2 Indicates the type of update that this object provides to a previous object. The link to the previous object is made using the tags <ARMIdentifier> and <ARMVersion>
0x000a 10 Iptc.Application2.Urgency String No No 1 1 Specifies the editorial urgency of content and not necessarily the envelope handling priority (see tag <EnvelopePriority>). The "1" is most urgent
0x000c 12 Iptc.Application2.Subject String No Yes 13 236 The Subject Reference is a structured definition of the subject matter.
0x000f 15 Iptc.Application2.Category String No No 0 3 Identifies the subject of the object data in the opinion of the provider. A list of categories will be maintained by a regional registry
0x0014 20 Iptc.Application2.SuppCategory String No Yes 0 32 Supplemental categories further refine the subject of an object data. A supplemental category may include any of the recognised categories as used in tag <Category>. Otherwise
0x0016 22 Iptc.Application2.FixtureId String No No 0 32 Identifies object data that recurs often and predictably. Enables users to immediately find or recall such an object.
0x0019 25 Iptc.Application2.Keywords String No Yes 0 64 Used to indicate specific information retrieval words. It is expected that a provider of various types of data that are related in subject matter uses the same keyword
0x001a 26 Iptc.Application2.LocationCode String No Yes 3 3 Indicates the code of a country/geographical location referenced by the content of the object. Where ISO has established an appropriate country code under ISO 3166
0x001b 27 Iptc.Application2.LocationName String No Yes 0 64 Provides a full
0x001e 30 Iptc.Application2.ReleaseDate Date No No 8 8 Designates in the form CCYYMMDD the earliest date the provider intends the object to be used. Follows ISO 8601 standard.
0x0023 35 Iptc.Application2.ReleaseTime Time No No 11 11 Designates in the form HHMMSS:HHMM the earliest time the provider intends the object to be used. Follows ISO 8601 standard.
0x0025 37 Iptc.Application2.ExpirationDate Date No No 8 8 Designates in the form CCYYMMDD the latest date the provider or owner intends the object data to be used. Follows ISO 8601 standard.
0x0026 38 Iptc.Application2.ExpirationTime Time No No 11 11 Designates in the form HHMMSS:HHMM the latest time the provider or owner intends the object data to be used. Follows ISO 8601 standard.
0x0028 40 Iptc.Application2.SpecialInstructions String No No 0 256 Other editorial instructions concerning the use of the object data
0x002a 42 Iptc.Application2.ActionAdvised String No No 2 2 Indicates the type of action that this object provides to a previous object. The link to the previous object is made using tags <ARMIdentifier> and <ARMVersion>
0x002d 45 Iptc.Application2.ReferenceService String No Yes 0 10 Identifies the Service Identifier of a prior envelope to which the current object refers.
0x002f 47 Iptc.Application2.ReferenceDate Date No Yes 8 8 Identifies the date of a prior envelope to which the current object refers.
0x0032 50 Iptc.Application2.ReferenceNumber String No Yes 8 8 Identifies the Envelope Number of a prior envelope to which the current object refers.
0x0037 55 Iptc.Application2.DateCreated Date No No 8 8 Represented in the form CCYYMMDD to designate the date the intellectual content of the object data was created rather than the date of the creation of the physical representation. Follows ISO 8601 standard.
0x003c 60 Iptc.Application2.TimeCreated Time No No 11 11 Represented in the form HHMMSS:HHMM to designate the time the intellectual content of the object data current source material was created rather than the creation of the physical representation. Follows ISO 8601 standard.
0x003e 62 Iptc.Application2.DigitizationDate Date No No 8 8 Represented in the form CCYYMMDD to designate the date the digital representation of the object data was created. Follows ISO 8601 standard.
0x003f 63 Iptc.Application2.DigitizationTime Time No No 11 11 Represented in the form HHMMSS:HHMM to designate the time the digital representation of the object data was created. Follows ISO 8601 standard.
0x0041 65 Iptc.Application2.Program String No No 0 32 Identifies the type of program used to originate the object data.
0x0046 70 Iptc.Application2.ProgramVersion String No No 0 10 Used to identify the version of the program mentioned in tag <Program>.
0x004b 75 Iptc.Application2.ObjectCycle String No No 1 1 Used to identify the editorial cycle of object data.
0x0050 80 Iptc.Application2.Byline String No Yes 0 32 Contains name of the creator of the object data
0x0055 85 Iptc.Application2.BylineTitle String No Yes 0 32 A by-line title is the title of the creator or creators of an object data. Where used
0x005a 90 Iptc.Application2.City String No No 0 32 Identifies city of object data origin according to guidelines established by the provider.
0x005c 92 Iptc.Application2.SubLocation String No No 0 32 Identifies the location within a city from which the object data originates
0x005f 95 Iptc.Application2.ProvinceState String No No 0 32 Identifies Province/State of origin according to guidelines established by the provider.
0x0064 100 Iptc.Application2.CountryCode String No No 3 3 Indicates the code of the country/primary location where the intellectual property of the object data was created
0x0065 101 Iptc.Application2.CountryName String No No 0 64 Provides full
0x0067 103 Iptc.Application2.TransmissionReference String No No 0 32 A code representing the location of original transmission according to practices of the provider.
0x0069 105 Iptc.Application2.Headline String No No 0 256 A publishable entry providing a synopsis of the contents of the object data.
0x006e 110 Iptc.Application2.Credit String No No 0 32 Identifies the provider of the object data
0x0073 115 Iptc.Application2.Source String No No 0 32 Identifies the original owner of the intellectual content of the object data. This could be an agency
0x0074 116 Iptc.Application2.Copyright String No No 0 128 Contains any necessary copyright notice.
0x0076 118 Iptc.Application2.Contact String No Yes 0 128 Identifies the person or organisation which can provide further background information on the object data.
0x0078 120 Iptc.Application2.Caption String No No 0 2000 A textual description of the object data.
0x007a 122 Iptc.Application2.Writer String No Yes 0 32 Identification of the name of the person involved in the writing
0x007d 125 Iptc.Application2.RasterizedCaption Undefined No No 7360 7360 Contains the rasterized object data description and is used where characters that have not been coded are required for the caption.
0x0082 130 Iptc.Application2.ImageType String No No 2 2 Indicates the color components of an image.
0x0083 131 Iptc.Application2.ImageOrientation String No No 1 1 Indicates the layout of an image.
0x0087 135 Iptc.Application2.Language String No No 2 3 Describes the major national language of the object
0x0096 150 Iptc.Application2.AudioType String No No 2 2 Indicates the type of an audio content.
0x0097 151 Iptc.Application2.AudioRate String No No 6 6 Indicates the sampling rate in Hertz of an audio content.
0x0098 152 Iptc.Application2.AudioResolution String No No 2 2 Indicates the sampling resolution of an audio content.
0x0099 153 Iptc.Application2.AudioDuration String No No 6 6 Indicates the duration of an audio content.
0x009a 154 Iptc.Application2.AudioOutcue String No No 0 64 Identifies the content of the end of an audio object data
0x00c8 200 Iptc.Application2.PreviewFormat Short No No 2 2 A binary number representing the file format of the object data preview. The file format must be registered with IPTC or NAA organizations with a unique number assigned to it.
0x00c9 201 Iptc.Application2.PreviewVersion Short No No 2 2 A binary number representing the particular version of the object data preview file format specified in tag <PreviewFormat>.
0x00ca 202 Iptc.Application2.Preview Undefined No No 0 256000 Binary image preview data.