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TIFF Tag Reference, Private TIFF Tags

Private TIFF tags are, at least originally, allocated by Adobe for organizations that wish to store information meaningful only to that organization in a TIFF file. The private tags listed here are the ones that found their way into the public domain and more general applications, and the ones that the owning organizations documented for the benefit of the TIFF community.

CodeNameShort description
DecHex
3293280A4Wang AnnotationAnnotation data, as used in 'Imaging for Windows'.
3344582A5MD FileTagSpecifies the pixel data format encoding in the Molecular Dynamics GEL file format.
3344682A6MD ScalePixelSpecifies a scale factor in the Molecular Dynamics GEL file format.
3344782A7MD ColorTableUsed to specify the conversion from 16bit to 8bit in the Molecular Dynamics GEL file format.
3344882A8MD LabNameName of the lab that scanned this file, as used in the Molecular Dynamics GEL file format.
3344982A9MD SampleInfoInformation about the sample, as used in the Molecular Dynamics GEL file format.
3345082AAMD PrepDateDate the sample was prepared, as used in the Molecular Dynamics GEL file format.
3345182ABMD PrepTimeTime the sample was prepared, as used in the Molecular Dynamics GEL file format.
3345282ACMD FileUnitsUnits for data in this file, as used in the Molecular Dynamics GEL file format.
33550830EModelPixelScaleTagUsed in interchangeable GeoTIFF files.
3372383BBIPTCIPTC (International Press Telecommunications Council) metadata.
33918847EINGR Packet Data TagIntergraph Application specific storage.
33919847FINGR Flag RegistersIntergraph Application specific flags.
339208480IrasB Transformation MatrixOriginally part of Intergraph's GeoTIFF tags, but likely understood by IrasB only.
339228482ModelTiepointTagOriginally part of Intergraph's GeoTIFF tags, but now used in interchangeable GeoTIFF files.
3426485D8ModelTransformationTagUsed in interchangeable GeoTIFF files.
343778649PhotoshopCollection of Photoshop 'Image Resource Blocks'.
346658769Exif IFDA pointer to the Exif IFD.
346758773ICC ProfileICC profile data.
3473587AFGeoKeyDirectoryTagUsed in interchangeable GeoTIFF files.
3473687B0GeoDoubleParamsTagUsed in interchangeable GeoTIFF files.
3473787B1GeoAsciiParamsTagUsed in interchangeable GeoTIFF files.
348538825GPS IFDA pointer to the Exif-related GPS Info IFD.
34908885CHylaFAX FaxRecvParamsUsed by HylaFAX.
34909885DHylaFAX FaxSubAddressUsed by HylaFAX.
34910885EHylaFAX FaxRecvTimeUsed by HylaFAX.
37724935CImageSourceDataUsed by Adobe Photoshop.
40965A005Interoperability IFDA pointer to the Exif-related Interoperability IFD.
42112A480GDAL_METADATAUsed by the GDAL library, holds an XML list of name=value 'metadata' values about the image as a whole, and about specific samples.
42113A481GDAL_NODATAUsed by the GDAL library, contains an ASCII encoded nodata or background pixel value.
50215C427Oce Scanjob DescriptionUsed in the Oce scanning process.
50216C428Oce Application SelectorUsed in the Oce scanning process.
50217C429Oce Identification NumberUsed in the Oce scanning process.
50218C42AOce ImageLogic CharacteristicsUsed in the Oce scanning process.
50706C612DNGVersionUsed in IFD 0 of DNG files.
50707C613DNGBackwardVersionUsed in IFD 0 of DNG files.
50708C614UniqueCameraModelUsed in IFD 0 of DNG files.
50709C615LocalizedCameraModelUsed in IFD 0 of DNG files.
50710C616CFAPlaneColorUsed in Raw IFD of DNG files.
50711C617CFALayoutUsed in Raw IFD of DNG files.
50712C618LinearizationTableUsed in Raw IFD of DNG files.
50713C619BlackLevelRepeatDimUsed in Raw IFD of DNG files.
50714C61ABlackLevelUsed in Raw IFD of DNG files.
50715C61BBlackLevelDeltaHUsed in Raw IFD of DNG files.
50716C61CBlackLevelDeltaVUsed in Raw IFD of DNG files.
50717C61DWhiteLevelUsed in Raw IFD of DNG files.
50718C61EDefaultScaleUsed in Raw IFD of DNG files.
50719C61FDefaultCropOriginUsed in Raw IFD of DNG files.
50720C620DefaultCropSizeUsed in Raw IFD of DNG files.
50721C621ColorMatrix1Used in IFD 0 of DNG files.
50722C622ColorMatrix2Used in IFD 0 of DNG files.
50723C623CameraCalibration1Used in IFD 0 of DNG files.
50724C624CameraCalibration2Used in IFD 0 of DNG files.
50725C625ReductionMatrix1Used in IFD 0 of DNG files.
50726C626ReductionMatrix2Used in IFD 0 of DNG files.
50727C627AnalogBalanceUsed in IFD 0 of DNG files.
50728C628AsShotNeutralUsed in IFD 0 of DNG files.
50729C629AsShotWhiteXYUsed in IFD 0 of DNG files.
50730C62ABaselineExposureUsed in IFD 0 of DNG files.
50731C62BBaselineNoiseUsed in IFD 0 of DNG files.
50732C62CBaselineSharpnessUsed in IFD 0 of DNG files.
50733C62DBayerGreenSplitUsed in Raw IFD of DNG files.
50734C62ELinearResponseLimitUsed in IFD 0 of DNG files.
50735C62FCameraSerialNumberUsed in IFD 0 of DNG files.
50736C630LensInfoUsed in IFD 0 of DNG files.
50737C631ChromaBlurRadiusUsed in Raw IFD of DNG files.
50738C632AntiAliasStrengthUsed in Raw IFD of DNG files.
50740C634DNGPrivateDataUsed in IFD 0 of DNG files.
50741C635MakerNoteSafetyUsed in IFD 0 of DNG files.
50778C65ACalibrationIlluminant1Used in IFD 0 of DNG files.
50779C65BCalibrationIlluminant2Used in IFD 0 of DNG files.
50780C65CBestQualityScaleUsed in Raw IFD of DNG files.
50784C660Alias Layer MetadataAlias Sketchbook Pro layer usage description.