Property Item Descriptions

The following list gives descriptions of the property items supported by Windows GDI+. The descriptions are brief and general so that they apply to a variety of image file formats. For a detailed description of how a property item is used by a particular file format, see the specification for that file format. For links to several file specifications and other documents that describe metadata in detail, see Image File Format Specifications.

The Exchangeable Image File (EXIF) format is a Japan Electronic Industry Development Association (JEIDA) standard, revised June 1998 as version 2.1. Portions of the EXIF specification are used with permission of JEIDA.

PropertyTagGpsVer

Version of the Global Positioning Systems (GPS) IFD, given as 2.0.0.0. This tag is mandatory when the PropertyTagGpsIFD tag is present. When the version is 2.0.0.0, the tag value is 0x02000000.

Tag 0x0000
Type PropertyTagTypeByte
Count 4

 

PropertyTagGpsLatitudeRef

Null-terminated character string that specifies whether the latitude is north or south. N specifies north latitude, and S specifies south latitude.

Tag 0x0001
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsLatitude

Latitude. Latitude is expressed as three rational values giving the degrees, minutes, and seconds respectively. When degrees, minutes, and seconds are expressed, the format is dd/1, mm/1, ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is dd/1, mmmm/100, 0/1.

Tag 0x0002
Type PropertyTagTypeRational
Count 3

 

PropertyTagGpsLongitudeRef

Null-terminated character string that specifies whether the longitude is east or west longitude. E specifies east longitude, and W specifies west longitude.

Tag 0x0003
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsLongitude

Longitude. Longitude is expressed as three rational values giving the degrees, minutes, and seconds respectively. When degrees, minutes and seconds are expressed, the format is ddd/1, mm/1, ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is ddd/1, mmmm/100, 0/1.

Tag 0x0004
Type PropertyTagTypeRational
Count 3

 

PropertyTagGpsAltitudeRef

Reference altitude, in meters.

Tag 0x0005
Type PropertyTagTypeByte
Count 1

 

PropertyTagGpsAltitude

Altitude, in meters, based on the reference altitude specified by PropertyTagGpsAltitudeRef.

Tag 0x0006
Type PropertyTagTypeRational
Count 1

 

PropertyTagGpsGpsTime

Time as Coordinated Universal Time (UTC). The value is expressed as three rational numbers that give the hour, minute, and second.

Tag 0x0007
Type PropertyTagTypeRational
Count 3

 

PropertyTagGpsGpsSatellites

Null-terminated character string that specifies the GPS satellites used for measurements. This tag can be used to specify the ID number, angle of elevation, azimuth, SNR, and other information about each satellite. The format is not specified. If the GPS receiver is incapable of taking measurements, the value of the tag must be set to NULL.

Tag 0x0008
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagGpsGpsStatus

Null-terminated character string that specifies the status of the GPS receiver when the image is recorded. A means measurement is in progress, and V means the measurement is Interoperability.

Tag 0x0009
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsGpsMeasureMode

Null-terminated character string that specifies the GPS measurement mode. 2 specifies 2-D measurement, and 3 specifies 3-D measurement.

Tag 0x000A
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsGpsDop

GPS DOP (data degree of precision). An HDOP value is written during 2-D measurement, and a PDOP value is written during 3-D measurement.

Tag 0x000B
Type PropertyTagTypeRational
Count 1

 

PropertyTagGpsSpeedRef

Null-terminated character string that specifies the unit used to express the GPS receiver speed of movement. K, M, and N represent kilometers per hour, miles per hour, and knots respectively.

Tag 0x000C
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsSpeed

Speed of the GPS receiver movement.

Tag 0x000D
Type PropertyTagTypeRational
Count 1

 

PropertyTagGpsTrackRef

Null-terminated character string that specifies the reference for giving the direction of GPS receiver movement. T specifies true direction, and M specifies magnetic direction.

Tag 0x000E
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsTrack

Direction of GPS receiver movement. The range of values is from 0.00 to 359.99.

Tag 0x000F
Type PropertyTagTypeRational
Count 1

 

PropertyTagGpsImgDirRef

Null-terminated character string that specifies the reference for the direction of the image when it is captured. T specifies true direction, and M specifies magnetic direction.

Tag 0x0010
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsImgDir

Direction of the image when it was captured. The range of values is from 0.00 to 359.99.

Tag 0x0011
Type PropertyTagTypeRational
Count 1

 

PropertyTagGpsMapDatum

Null-terminated character string that specifies geodetic survey data used by the GPS receiver. If the survey data is restricted to Japan, the value of this tag is TOKYO or WGS-84.

Tag 0x0012
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagGpsDestLatRef

Null-terminated character string that specifies whether the latitude of the destination point is north or south latitude. N specifies north latitude, and S specifies south latitude.

Tag 0x0013
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsDestLat

Latitude of the destination point. The latitude is expressed as three rational values giving the degrees, minutes, and seconds respectively. When degrees, minutes, and seconds are expressed, the format is dd/1, mm/1, ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is dd/1, mmmm/100, 0/1.

Tag 0x0014
Type PropertyTagTypeRational
Count 3

 

PropertyTagGpsDestLongRef

Null-terminated character string that specifies whether the longitude of the destination point is east or west longitude. E specifies east longitude, and W specifies west longitude.

Tag 0x0015
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsDestLong

Longitude of the destination point. The longitude is expressed as three rational values giving the degrees, minutes, and seconds respectively. When degrees, minutes, and seconds are expressed, the format is ddd/1, mm/1, ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is ddd/1, mmmm/100, 0/1.

Tag 0x0016
Type PropertyTagTypeRational
Count 3

 

PropertyTagGpsDestBearRef

Null-terminated character string that specifies the reference used for giving the bearing to the destination point. T specifies true direction, and M specifies magnetic direction.

Tag 0x0017
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsDestBear

Bearing to the destination point. The range of values is from 0.00 to 359.99.

Tag 0x0018
Type PropertyTagTypeRational
Count 1

 

PropertyTagGpsDestDistRef

Null-terminated character string that specifies the unit used to express the distance to the destination point. K, M, and N represent kilometers, miles, and knots respectively.

Tag 0x0019
Type PropertyTagTypeASCII
Count 2 (one character plus the NULL terminator)

 

PropertyTagGpsDestDist

Distance to the destination point.

Tag 0x001A
Type PropertyTagTypeRational
Count 1

 

PropertyTagNewSubfileType

Type of data in a subfile.

Tag 0x00FE
Type PropertyTagTypeLong
Count 1

 

PropertyTagSubfileType

Type of data in a subfile.

Tag 0x00FF
Type PropertyTagTypeShort
Count 1

 

PropertyTagImageWidth

Number of pixels per row.

Tag 0x0100
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagImageHeight

Number of pixel rows.

Tag 0x0101
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagBitsPerSample

Number of bits per color component. See also PropertyTagSamplesPerPixel.

Tag 0x0102
Type PropertyTagTypeShort
Count Number of samples (components) per pixel

 

PropertyTagCompression

Compression scheme used for the image data.

Tag 0x0103
Type PropertyTagTypeShort
Count 1

 

PropertyTagPhotometricInterp

How pixel data will be interpreted.

Tag 0x0106
Type PropertyTagTypeShort
Count 1

 

PropertyTagThreshHolding

Technique used to convert from gray pixels to black and white pixels.

Tag 0x0107
Type PropertyTagTypeShort
Count 1

 

PropertyTagCellWidth

Width of the dithering or halftoning matrix.

Tag 0x0108
Type PropertyTagTypeShort
Count 1

 

PropertyTagCellHeight

Height of the dithering or halftoning matrix.

Tag 0x0109
Type PropertyTagTypeShort
Count 1

 

PropertyTagFillOrder

Logical order of bits in a byte.

Tag 0x010A
Type PropertyTagTypeShort
Count 1

 

PropertyTagDocumentName

Null-terminated character string that specifies the name of the document from which the image was scanned.

Tag 0x010D
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagImageDescription

Null-terminated character string that specifies the title of the image.

Tag 0x010E
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagEquipMake

Null-terminated character string that specifies the manufacturer of the equipment used to record the image.

Tag 0x010F
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagEquipModel

Null-terminated character string that specifies the model name or model number of the equipment used to record the image.

Tag 0x0110
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagStripOffsets

For each strip, the byte offset of that strip. See also PropertyTagRowsPerStrip and PropertyTagStripBytesCount.

Tag 0x0111
Type PropertyTagTypeShort or PropertyTagTypeLong
Count Number of strips

 

PropertyTagOrientation

Image orientation viewed in terms of rows and columns.

Tag

0x0112

Type

PropertyTagTypeShort

Count

1

1 - The 0th row is at the top of the visual image, and the 0th column is the visual left side. 2 - The 0th row is at the visual top of the image, and the 0th column is the visual right side. 3 - The 0th row is at the visual bottom of the image, and the 0th column is the visual right side. 4 - The 0th row is at the visual bottom of the image, and the 0th column is the visual left side. 5 - The 0th row is the visual left side of the image, and the 0th column is the visual top. 6 - The 0th row is the visual right side of the image, and the 0th column is the visual top. 7 - The 0th row is the visual right side of the image, and the 0th column is the visual bottom. 8 - The 0th row is the visual left side of the image, and the 0th column is the visual bottom.

 

PropertyTagSamplesPerPixel

Number of color components per pixel.

Tag 0x0115
Type PropertyTagTypeShort
Count 1

 

PropertyTagRowsPerStrip

Number of rows per strip. See also PropertyTagStripBytesCount and PropertyTagStripOffsets.

Tag 0x0116
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagStripBytesCount

For each strip, the total number of bytes in that strip.

Tag 0x0117
Type PropertyTagTypeShort or PropertyTagTypeLong
Count Number of strips

 

PropertyTagMinSampleValue

For each color component, the minimum value assigned to that component. See also PropertyTagSamplesPerPixel.

Tag 0x0118
Type PropertyTagTypeShort
Count Number of samples (components) per pixel

 

PropertyTagMaxSampleValue

For each color component, the maximum value assigned to that component. See also PropertyTagSamplesPerPixel.

Tag 0x0119
Type PropertyTagTypeShort
Count Number of samples (components) per pixel

 

PropertyTagXResolution

Number of pixels per unit in the image width (x) direction. The unit is specified by PropertyTagResolutionUnit.

Tag 0x011A
Type PropertyTagTypeRational
Count 1

 

PropertyTagYResolution

Number of pixels per unit in the image height (y) direction. The unit is specified by PropertyTagResolutionUnit.

Tag 0x011B
Type PropertyTagTypeRational
Count 1

 

PropertyTagPlanarConfig

Whether pixel components are recorded in chunky or planar format.

Tag 0x011C
Type PropertyTagTypeShort
Count 1

 

PropertyTagPageName

Null-terminated character string that specifies the name of the page from which the image was scanned.

Tag 0x011D
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagXPosition

Offset from the left side of the page to the left side of the image. The unit of measure is specified by PropertyTagResolutionUnit.

Tag 0x011E
Type PropertyTagTypeRational
Count 1

 

PropertyTagYPosition

Offset from the top of the page to the top of the image. The unit of measure is specified by PropertyTagResolutionUnit.

Tag 0x011F
Type PropertyTagTypeRational
Count 1

 

PropertyTagFreeOffset

For each string of contiguous unused bytes, the byte offset of that string.

Tag 0x0120
Type PropertyTagTypeLong

 

PropertyTagFreeByteCounts

For each string of contiguous unused bytes, the number of bytes in that string.

Tag 0x0121
Type PropertyTagTypeLong
Count Number of strings of contiguous unused bytes.

 

PropertyTagGrayResponseUnit

Precision of the number specified by PropertyTagGrayResponseCurve. 1 specifies tenths, 2 specifies hundredths, 3 specifies thousandths, and so on.

Tag 0x0122
Type PropertyTagTypeShort
Count 1

 

PropertyTagGrayResponseCurve

For each possible pixel value in a grayscale image, the optical density of that pixel value.

Tag 0x0123
Type PropertyTagTypeShort
Count Number of possible pixel values

 

PropertyTagT4Option

Set of flags that relate to T4 encoding.

Tag 0x0124
Type PropertyTagTypeLong
Count 1

 

PropertyTagT6Option

Set of flags that relate to T6 encoding.

Tag 0x0125
Type PropertyTagTypeLong
Count 1

 

PropertyTagResolutionUnit

Unit of measure for the horizontal resolution and the vertical resolution.

Tag

0x0128

Type

PropertyTagTypeShort

Count

1

2 - inch 3 - centimeter

 

PropertyTagPageNumber

Page number of the page from which the image was scanned.

Tag 0x0129
Type PropertyTagTypeShort
Count 1

 

PropertyTagTransferFunction

Tables that specify transfer functions for the image.

Tag 0x012D
Type PropertyTagTypeShort
Count Total number of 16-bit words required for the tables

 

PropertyTagSoftwareUsed

Null-terminated character string that specifies the name and version of the software or firmware of the device used to generate the image.

Tag 0x0131
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagDateTime

Date and time the image was created.

Tag 0x0132
Type PropertyTagTypeASCII
Count 20

 

PropertyTagArtist

Null-terminated character string that specifies the name of the person who created the image.

Tag 0x013B
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagHostComputer

Null-terminated character string that specifies the computer and/or operating system used to create the image.

Tag 0x013C
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagPredictor

Type of prediction scheme that was applied to the image data before the encoding scheme was applied.

Tag 0x013D
Type PropertyTagTypeShort
Count 1

 

PropertyTagWhitePoint

Chromaticity of the white point of the image.

Tag 0x013E
Type PropertyTagTypeRational
Count 2

 

PropertyTagPrimaryChromaticities

For each of the three primary colors in the image, the chromaticity of that color.

Tag 0x013F
Type PropertyTagTypeRational
Count 6

 

PropertyTagColorMap

Color palette (lookup table) for a palette-indexed image.

Tag 0x0140
Type PropertyTagTypeShort
Count Number of 16-bit words required for the palette

 

PropertyTagHalftoneHints

Information used by the halftone function

Tag 0x0141
Type PropertyTagTypeShort
Count 2

 

PropertyTagTileWidth

Number of pixel columns in each tile.

Tag 0x0142
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagTileLength

Number of pixel rows in each tile.

Tag 0x0143
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagTileOffset

For each tile, the byte offset of that tile.

Tag 0x0144
Type PropertyTagTypeLong
Count Number of tiles

 

PropertyTagTileByteCounts

For each tile, the number of bytes in that tile.

Tag 0x0145
Type PropertyTagTypeShort or PropertyTagTypeLong
Count Number of tiles

 

PropertyTagInkSet

Set of inks used in a separated image.

Tag 0x014C
Type PropertyTagTypeShort
Count 1

 

PropertyTagInkNames

Sequence of concatenated, null-terminated, character strings that specify the names of the inks used in a separated image.

Tag 0x014D
Type PropertyTagTypeASCII
Count Total length of the sequence of strings including the NULL terminators

 

PropertyTagNumberOfInks

Number of inks.

Tag 0x014E
Type PropertyTagTypeShort
Count 1

 

PropertyTagDotRange

Color component values that correspond to a 0 percent dot and a 100 percent dot.

Tag 0x0150
Type PropertyTagTypeByte or PropertyTagTypeShort
Count 2 or 2×PropertyTagSamplesPerPixel

 

PropertyTagTargetPrinter

Null-terminated character string that describes the intended printing environment.

Tag 0x0151
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagExtraSamples

Number of extra color components. For example, one extra component might hold an alpha value.

Tag 0x0152
Type PropertyTagTypeShort
Count 1

 

PropertyTagSampleFormat

For each color component, the numerical format (unsigned, signed, floating point) of that component. See also PropertyTagSamplesPerPixel.

Tag 0x0153
Type PropertyTagTypeShort
Count Number of samples (components) per pixel

 

PropertyTagSMinSampleValue

For each color component, the minimum value of that component. See also PropertyTagSamplesPerPixel.

Tag 0x0154
Type The type that best matches the pixel component data
Count Number of samples (components) per pixel

 

PropertyTagSMaxSampleValue

For each color component, the maximum value of that component. See also PropertyTagSamplesPerPixel.

Tag 0x0155
Type The type that best matches the pixel component data
Count Number of samples (components) per pixel

 

PropertyTagTransferRange

Table of values that extends the range of the transfer function.

Tag 0x0156
Type PropertyTagTypeShort
Count 6

 

PropertyTagJPEGProc

JPEG compression process.

Tag 0x0200
Type PropertyTagTypeShort
Count 1

 

PropertyTagJPEGInterFormat

Offset to the start of a JPEG bitstream.

Tag 0x0201
Type PropertyTagTypeLong
Count 1

 

PropertyTagJPEGInterLength

Length, in bytes, of the JPEG bitstream.

Tag 0x0202
Type PropertyTagTypeLong
Count 1

 

PropertyTagJPEGRestartInterval

Length of the restart interval.

Tag 0x0203
Type PropertyTagTypeShort
Count 1

 

PropertyTagJPEGLosslessPredictors

For each color component, a lossless predictor-selection value for that component. See also PropertyTagSamplesPerPixel.

Tag 0x0205
Type PropertyTagTypeShort
Count Number of samples (components) per pixel

 

PropertyTagJPEGPointTransforms

For each color component, a point transformation value for that component. See also PropertyTagSamplesPerPixel.

Tag 0x0206
Type PropertyTagTypeShort
Count Number of samples (components) per pixel

 

PropertyTagJPEGQTables

For each color component, the offset to the quantization table for that component. See also PropertyTagSamplesPerPixel.

Tag 0x0207
Type PropertyTagTypeLong
Count Number of samples (components) per pixel

 

PropertyTagJPEGDCTables

For each color component, the offset to the DC Huffman table (or lossless Huffman table) for that component. See also PropertyTagSamplesPerPixel.

Tag 0x0208
Type PropertyTagTypeLong
Count Number of samples (components) per pixel

 

PropertyTagJPEGACTables

For each color component, the offset to the AC Huffman table for that component. See also PropertyTagSamplesPerPixel.

Tag 0x0209
Type PropertyTagTypeLong
Count Number of samples (components) per pixel

 

PropertyTagYCbCrCoefficients

Coefficients for transformation from RGB to YCbCr image data.

Tag 0x0211
Type PropertyTagTypeRational
Count 3

 

PropertyTagYCbCrSubsampling

Sampling ratio of chrominance components in relation to the luminance component.

Tag 0x0212
Type PropertyTagTypeShort
Count 2

 

PropertyTagYCbCrPositioning

Position of chrominance components in relation to the luminance component.

Tag 0x0213
Type PropertyTagTypeShort
Count 1

 

PropertyTagREFBlackWhite

Reference black point value and reference white point value.

Tag 0x0214
Type PropertyTagTypeRational
Count 6

 

PropertyTagGamma

Gamma value attached to the image. The gamma value is stored as a rational number (pair of long) with a numerator of 100000. For example, a gamma value of 2.2 is stored as the pair (100000, 45455).

Tag 0x0301
Type PropertyTagTypeRational
Count 1

 

PropertyTagICCProfileDescriptor

Null-terminated character string that identifies an ICC profile.

Tag 0x0302
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagSRGBRenderingIntent

How the image should be displayed as defined by the International Color Consortium (ICC). If a GDI+  Image object is constructed with the useEmbeddedColorManagement parameter set to TRUE, then GDI+ renders the image according to the specified rendering intent. The intent can be set to perceptual, relative colorimetric, saturation, or absolute colorimetric.

  • Perceptual intent, which is suitable for photographs, gives good adaptation to the display device gamut at the expense of colorimetric accuracy.
  • Relative colorimetric intent is suitable for images (for example, logos) that require color appearance matching that is relative to the display device white point.
  • Saturation intent, which is suitable for charts and graphs, preserves saturation at the expense of hue and lightness.
  • Absolute colorimetric intent is suitable for proofs (previews of images destined for a different display device) that require preservation of absolute colorimetry.

Tag

0x0303

Type

BYTE

Count

1

0 - perceptual 1 - relative colorimetric 2 - saturation 3 - absolute colorimetric

 

PropertyTagImageTitle

Null-terminated character string that specifies the title of the image.

Tag 0x0320
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagResolutionXUnit

Units in which to display horizontal resolution.

Tag

0x5001

Type

PropertyTagTypeShort

Count

1

1 - pixels per inch 2 - pixels per centimeter

 

PropertyTagResolutionYUnit

Units in which to display vertical resolution.

Tag

0x5002

Type

PropertyTagTypeShort

Count

1

1 - pixels per inch 2 - pixels per centimeter

 

PropertyTagResolutionXLengthUnit

Units in which to display the image width.

Tag

0x5003

Type

PropertyTagTypeShort

Count

1

1 - inches 2 - centimeters 3 - points 4 - picas 5 - columns

 

PropertyTagResolutionYLengthUnit

Units in which to display the image height.

Tag

0x5004

Type

PropertyTagTypeShort

Count

1

1 - inches 2 - centimeters 3 - points 4 - picas 5 - columns

 

PropertyTagPrintFlags

Sequence of one-byte Boolean values that specify printing options.

Tag 0x5005
Type PropertyTagTypeASCII
Count Number of flags

 

PropertyTagPrintFlagsVersion

Print flags version.

Tag 0x5006
Type PropertyTagTypeShort
Count 1

 

PropertyTagPrintFlagsCrop

Print flags center crop marks.

Tag 0x5007
Type PropertyTagTypeByte
Count 1

 

PropertyTagPrintFlagsBleedWidth

Print flags bleed width.

Tag 0x5008
Type PropertyTagTypeLong
Count 1

 

PropertyTagPrintFlagsBleedWidthScale

Print flags bleed width scale.

Tag 0x5009
Type PropertyTagTypeShort
Count 1

 

PropertyTagHalftoneLPI

Ink's screen frequency, in lines per inch.

Tag 0x500A
Type PropertyTagTypeRational
Count 1

 

PropertyTagHalftoneLPIUnit

Units for the screen frequency.

Tag

0x500B

Type

PropertyTagTypeShort

Count

1

1 - lines per inch 2 - lines per centimeter

 

PropertyTagHalftoneDegree

Angle for screen.

Tag 0x500C
Type PropertyTagTypeRational
Count 1

 

PropertyTagHalftoneShape

Shape of the halftone dots.

Tag

0x500D

Type

PropertyTagTypeShort

Count

1

0 - round 1 - ellipse 2 - line 3 - square 4 - cross 6 - diamond

 

PropertyTagHalftoneMisc

Miscellaneous halftone information.

Tag 0x500E
Type PropertyTagTypeLong
Count 1

 

PropertyTagHalftoneScreen

Boolean value that specifies whether to use the printer's default screens.

Tag

0x500F

Type

PropertyTagTypeByte

Count

1

1 - use printer's default screens 2 - other

 

PropertyTagJPEGQuality

Private tag used by the Adobe Photoshop format. Not for public use.

Tag 0x5010
Type PropertyTagTypeShort
Count Any

 

PropertyTagGridSize

Block of information about grids and guides.

Tag 0x5011
Type PropertyTagTypeUndefined
Count Any

 

PropertyTagThumbnailFormat

Format of the thumbnail image.

Tag

0x5012

Type

PropertyTagTypeLong

Count

1

0 - raw RGB 1 - JPEG

 

PropertyTagThumbnailWidth

Width, in pixels, of the thumbnail image.

Tag 0x5013
Type PropertyTagTypeLong
Count 1

 

PropertyTagThumbnailHeight

Height, in pixels, of the thumbnail image.

Tag 0x5014
Type PropertyTagTypeLong
Count 1

 

PropertyTagThumbnailColorDepth

bits per pixel (BPP) for the thumbnail image.

Tag 0x5015
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailPlanes

Number of color planes for the thumbnail image.

Tag 0x5016
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailRawBytes

Byte offset between rows of pixel data.

Tag 0x5017
Type PropertyTagTypeLong
Count 1

 

PropertyTagThumbnailSize

Total size, in bytes, of the thumbnail image.

Tag 0x5018
Type PropertyTagTypeLong
Count 1

 

PropertyTagThumbnailCompressedSize

Compressed size, in bytes, of the thumbnail image.

Tag 0x5019
Type PropertyTagTypeLong
Count 1

 

PropertyTagColorTransferFunction

Table of values that specify color transfer functions.

Tag 0x501A
Type PropertyTagTypeUndefined
Count Any

 

PropertyTagThumbnailData

Raw thumbnail bits in JPEG or RGB format. Depends on PropertyTagThumbnailFormat.

Tag 0x501B
Type PropertyTagTypeByte
Count Variable

 

PropertyTagThumbnailImageWidth

Number of pixels per row in the thumbnail image.

Tag 0x5020
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagThumbnailImageHeight

Number of pixel rows in the thumbnail image.

Tag 0x5021
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagThumbnailBitsPerSample

Number of bits per color component in the thumbnail image. See also PropertyTagThumbnailSamplesPerPixel.

Tag 0x5022
Type PropertyTagTypeShort
Count Number of samples (components) per pixel in the thumbnail image

 

PropertyTagThumbnailCompression

Compression scheme used for thumbnail image data.

Tag 0x5023
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailPhotometricInterp

How thumbnail pixel data will be interpreted.

Tag 0x5024
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailImageDescription

Null-terminated character string that specifies the title of the image.

Tag 0x5025
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagThumbnailEquipMake

Null-terminated character string that specifies the manufacturer of the equipment used to record the thumbnail image.

Tag 0x5026
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagThumbnailEquipModel

Null-terminated character string that specifies the model name or model number of the equipment used to record the thumbnail image.

Tag 0x5027
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagThumbnailStripOffsets

For each strip in the thumbnail image, the byte offset of that strip. See also PropertyTagThumbnailRowsPerStrip and PropertyTagThumbnailStripBytesCount.

Tag 0x5028
Type PropertyTagTypeShort or PropertyTagTypeLong
Count Number of strips

 

PropertyTagThumbnailOrientation

Thumbnail image orientation in terms of rows and columns. See also PropertyTagOrientation.

Tag 0x5029
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailSamplesPerPixel

Number of color components per pixel in the thumbnail image.

Tag 0x502A
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailRowsPerStrip

Number of rows per strip in the thumbnail image. See also PropertyTagThumbnailStripBytesCount and PropertyTagThumbnailStripOffsets.

Tag 0x502B
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagThumbnailStripBytesCount

For each thumbnail image strip, the total number of bytes in that strip.

Tag 0x502C
Type PropertyTagTypeShort or PropertyTagTypeLong
Count Number of strips in the thumbnail image

 

PropertyTagThumbnailResolutionX

Thumbnail resolution in the width direction. The resolution unit is given in PropertyTagThumbnailResolutionUnit.

Tag 0x502D

 

PropertyTagThumbnailResolutionY

Thumbnail resolution in the height direction. The resolution unit is given in PropertyTagThumbnailResolutionUnit.

Tag 0x502E

 

PropertyTagThumbnailPlanarConfig

Whether pixel components in the thumbnail image are recorded in chunky or planar format. See also PropertyTagPlanarConfig.

Tag 0x502F
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailResolutionUnit

Unit of measure for the horizontal resolution and the vertical resolution of the thumbnail image. See also PropertyTagResolutionUnit.

Tag 0x5030
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailTransferFunction

Tables that specify transfer functions for the thumbnail image. See also PropertyTagTransferFunction.

Tag 0x5031
Type PropertyTagTypeShort
Count Total number of 16-bit words required for the tables

 

PropertyTagThumbnailSoftwareUsed

Null-terminated character string that specifies the name and version of the software or firmware of the device used to generate the thumbnail image.

Tag 0x5032
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagThumbnailDateTime

Date and time the thumbnail image was created. See also PropertyTagDateTime.

Tag 0x5033
Type PropertyTagTypeASCII
Count 20

 

PropertyTagThumbnailArtist

Null-terminated character string that specifies the name of the person who created the thumbnail image.

Tag 0x5034
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagThumbnailWhitePoint

Chromaticity of the white point of the thumbnail image. See also PropertyTagWhitePoint.

Tag 0x5035
Type PropertyTagTypeRational
Count 2

 

PropertyTagThumbnailPrimaryChromaticities

For each of the three primary colors in the thumbnail image, the chromaticity of that color. See also PropertyTagPrimaryChromaticities.

Tag 0x5036
Type PropertyTagTypeRational
Count 6

 

PropertyTagThumbnailYCbCrCoefficients

Coefficients for transformation from RGB to YCbCr data for the thumbnail image. See also PropertyTagYCbCrCoefficients.

Tag 0x5037
Type PropertyTagTypeRational
Count 3

 

PropertyTagThumbnailYCbCrSubsampling

Sampling ratio of chrominance components in relation to the luminance component for the thumbnail image. See also PropertyTagYCbCrSubsampling.

Tag 0x5038
Type PropertyTagTypeShort
Count 2

 

PropertyTagThumbnailYCbCrPositioning

Position of chrominance components in relation to the luminance component for the thumbnail image. See also PropertyTagYCbCrPositioning.

Tag 0x5039
Type PropertyTagTypeShort
Count 1

 

PropertyTagThumbnailRefBlackWhite

Reference black point value and reference white point value for the thumbnail image. See also PropertyTagREFBlackWhite.

Tag 0x503A
Type PropertyTagTypeRational
Count 6

 

PropertyTagThumbnailCopyRight

Null-terminated character string that contains copyright information for the thumbnail image.

Tag 0x503B
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagLuminanceTable

Luminance table. The luminance table and the chrominance table are used to control JPEG quality. A valid luminance or chrominance table has 64 entries of type PropertyTagTypeShort. If an image has either a luminance table or a chrominance table, then it must have both tables.

Tag 0x5090
Type PropertyTagTypeShort
Count 64

 

PropertyTagChrominanceTable

Chrominance table. The luminance table and the chrominance table are used to control JPEG quality. A valid luminance or chrominance table has 64 entries of type PropertyTagTypeShort. If an image has either a luminance table or a chrominance table, then it must have both tables.

Tag 0x5091
Type PropertyTagTypeShort
Count 64

 

PropertyTagFrameDelay

Time delay, in hundredths of a second, between two frames in an animated GIF image.

Tag 0x5100
Type PropertyTagTypeLong
Count Number of frames in the image

 

PropertyTagLoopCount

For an animated GIF image, the number of times to display the animation. A value of 0 specifies that the animation should be displayed infinitely.

Tag 0x5101
Type PropertyTagTypeShort
Count 1

 

PropertyTagGlobalPalette

Color palette for an indexed bitmap in a GIF image.

Tag 0x5102
Type PropertyTagTypeByte
Count 3 x number of palette entries

 

PropertyTagIndexBackground

Index of the background color in the palette of a GIF image.

Tag 0x5103
Type PropertyTagTypeByte
Count 1

 

PropertyTagIndexTransparent

Index of the transparent color in the palette of a GIF image.

Tag 0x5104
Type PropertyTagTypeByte
Count 1

 

PropertyTagPixelUnit

Unit for PropertyTagPixelPerUnitX and PropertyTagPixelPerUnitY.

Tag

0x5110

Type

PropertyTagTypeByte

Count

1

0 - unknown

 

PropertyTagPixelPerUnitX

Pixels per unit in the x direction.

Tag 0x5111
Type PropertyTagTypeLong
Count 1

 

PropertyTagPixelPerUnitY

Pixels per unit in the y direction.

Tag 0x5112
Type PropertyTagTypeLong
Count 1

 

PropertyTagPaletteHistogram

Palette histogram.

Tag 0x5113
Type PropertyTagTypeByte
Count Length of the histogram

 

PropertyTagCopyright

Null-terminated character string that contains copyright information.

Tag 0x8298
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagExifExposureTime

Exposure time, measured in seconds.

Tag 0x829A
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifFNumber

F number.

Tag 0x829D
Type RATIONAL
Count 1

 

PropertyTagExifIFD

Private tag used by GDI+. Not for public use. GDI+ uses this tag to locate Exif-specific information.

Tag 0x8769
Type PropertyTagTypeLong
Count 1

 

PropertyTagICCProfile

ICC profile embedded in the image.

Tag 0x8773
Type PropertyTagTypeByte
Count Length of the profile

 

PropertyTagExifExposureProg

Class of the program used by the camera to set exposure when the picture is taken.

Tag

0x8822

Type

SHORT

Count

1

Default

0

0 - not defined 1 - manual 2 - normal program 3 - aperture priority 4 - shutter priority 5 - creative program (biased toward depth of field) 6 - action program (biased toward fast shutter speed) 7 - portrait mode (for close-up photos with the background out of focus) 8 - landscape mode (for landscape photos with the background in focus) 9 to 255 - reserved

 

PropertyTagExifSpectralSense

Null-terminated character string that specifies the spectral sensitivity of each channel of the camera used. The string is compatible with the standard developed by the ASTM Technical Committee.

Tag 0x8824
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagGpsIFD

Offset to a block of GPS property items. Property items whose tags have the prefix PropertyTagGps are stored in the GPS block. The GPS property items are defined in the EXIF specification. GDI+ uses this tag to locate GPS information, but GDI+ does not expose this tag for public use.

Tag 0x8825
Type PropertyTagTypeLong
Count 1

 

PropertyTagExifISOSpeed

ISO speed and ISO latitude of the camera or input device as specified in ISO 12232.

Tag 0x8827
Type PropertyTagTypeShort
Count Any

 

PropertyTagExifOECF

Optoelectronic conversion function (OECF) specified in ISO 14524. The OECF is the relationship between the camera optical input and the image values.

Tag 0x8828
Type PropertyTagTypeUndefined
Count Any

 

PropertyTagExifVer

Version of the EXIF standard supported. Nonexistence of this field is taken to mean nonconformance to the standard. Conformance to the standard is indicated by recording 0210 as a 4-byte ASCII string. Because the type is PropertyTagTypeUndefined, there is no NULL terminator.

Tag 0x9000
Type PropertyTagTypeUndefined
Count 4
Default 0210

 

PropertyTagExifDTOrig

Date and time when the original image data was generated. For a DSC, the date and time when the picture was taken. The format is YYYY:MM:DD HH:MM:SS with time shown in 24-hour format and the date and time separated by one blank character (0x2000). The character string length is 20 bytes including the NULL terminator. When the field is empty, it is treated as unknown.

Tag 0x9003
Type PropertyTagTypeASCII
Count 20

 

PropertyTagExifDTDigitized

Date and time when the image was stored as digital data. If, for example, an image was captured by DSC and at the same time the file was recorded, then DateTimeOriginal and DateTimeDigitized will have the same contents.

The format is YYYY:MM:DD HH:MM:SS with time shown in 24-hour format and the date and time separated by one blank character (0x2000). The character string length is 20 bytes including the NULL terminator. When the field is empty, it is treated as unknown.

Tag 0x9004
Type PropertyTagTypeASCII
Count 20

 

PropertyTagExifCompConfig

Information specific to compressed data. The channels of each component are arranged in order from the first component to the fourth. For uncompressed data, the data arrangement is given in the PropertyTagPhotometricInterp tag.

However, because PropertyTagPhotometricInterp can only express the order of Y, Cb, and Cr, this tag is provided for cases when compressed data uses components other than Y, Cb, and Cr and to support other sequences.

Tag

0x9101

Type

PropertyTagTypeUndefined

Count

4

Default

4 5 6 0 (if RGB uncompressed) 1 2 3 0 (other cases)

0 - does not exist 1 - Y 2 - Cb 3 - Cr 4 - R 5 - G 6 - B Other - reserved

 

PropertyTagExifCompBPP

Information specific to compressed data. The compression mode used for a compressed image is indicated in unit BPP.

Tag 0x9102
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifShutterSpeed

Shutter speed. The unit is the Additive System of Photographic Exposure (APEX) value.

Tag 0x9201
Type PropertyTagTypeSRational
Count 1

 

PropertyTagExifAperture

Lens aperture. The unit is the APEX value.

Tag 0x9202
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifBrightness

Brightness value. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.

Tag 0x9203
Type PropertyTagTypeSRational
Count 1

 

PropertyTagExifExposureBias

Exposure bias. The unit is the APEX value. Ordinarily it is given in the range -99.99 to 99.99.

Tag 0x9204
Type PropertyTagTypeSRational
Count 1

 

PropertyTagExifMaxAperture

Smallest F number of the lens. The unit is the APEX value. Ordinarily it is given in the range of 00.00 to 99.99, but it is not limited to this range.

Tag 0x9205
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifSubjectDist

Distance to the subject, measured in meters.

Tag 0x9206
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifMeteringMode

Metering mode.

Tag

0x9207

Type

PropertyTagTypeShort

Count

1

Default

0

0 - unknown 1 - Average 2 - CenterWeightedAverage 3 - Spot 4 - MultiSpot 5 - Pattern 6 - Partial 7 to 254 - reserved 255 - other

 

PropertyTagExifLightSource

Type of light source.

Tag

0x9208

Type

PropertyTagTypeShort

Count

1

Default

0

0 - unknown 1 - Daylight 2 - Flourescent 3 - Tungsten 17 - Standard Light A 18 - Standard Light B 19 - Standard Light C 20 - D55 21 - D65 22 - D75 23 to 254 - reserved 255 - other

 

PropertyTagExifFlash

Flash status. This tag is recorded when an image is taken using a strobe light (flash). Bit 0 indicates the flash firing status, and bits 1 and 2 indicate the flash return status.

Tag

0x9209

Type

PropertyTagTypeShort

Count

1

Values for bit 0 that indicate whether the flash fired: 0b - flash did not fire 1b - flash fired

Values for bits 1 and 2 that indicate the status of returned light: 00b - no strobe return detection function 01b - reserved 10b - strobe return light not detected 11b - strobe return light detected

Resulting flash tag values: 0x0000 - flash did not fire 0x0001 - flash fired 0x0005 - strobe return light not detected

 

PropertyTagExifFocalLength

Actual focal length, in millimeters, of the lens. Conversion is not made to the focal length of a 35 millimeter film camera.

Tag 0x920A
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifMakerNote

Note tag. A tag used by manufacturers of EXIF writers to record information. The contents are up to the manufacturer.

Tag 0x927C
Type PropertyTagTypeUndefined
Count Any

 

PropertyTagExifUserComment

Comment tag. A tag used by EXIF users to write keywords or comments about the image besides those in PropertyTagImageDescription and without the character-code limitations of the PropertyTagImageDescription tag.

Tag 0x9286
Type PropertyTagTypeUndefined
Count Any

 

The character code used in the PropertyTagExifUserComment tag is identified based on an ID code in a fixed 8-byte area at the start of the tag data area. The unused portion of the area is padded with null characters (0). ID codes are assigned by means of registration. Because the type is not ASCII, it is not necessary to use a NULL terminator.

PropertyTagExifDTSubsec

Null-terminated character string that specifies a fraction of a second for the PropertyTagDateTime tag.

Tag 0x9290
Type PropertyTagTypeASCII
Count Length of the string including the NULL terminator

 

PropertyTagExifDTOrigSS

Null-terminated character string that specifies a fraction of a second for the PropertyTagExifDTOrig tag.

Tag 0x9291
Type PropertyTagTypeASCII
N Length of the string including the NULL terminator

 

PropertyTagExifDTDigSS

Null-terminated character string that specifies a fraction of a second for the PropertyTagExifDTDigitized tag.

Tag 0x9292
Type ASCII
N Length of the string including the NULL terminator

 

PropertyTagExifFPXVer

FlashPix format version supported by an FPXR file. If the FPXR function supports FlashPix format version 1.0, this is indicated similarly to PropertyTagExifVer by recording 0100 as a 4-byte ASCII string. Because the type is PropertyTagTypeUndefined, there is no NULL terminator.

Tag

0xA000

Type

PropertyTagTypeUndefined

Count

4

Default

0100

0100 - FlashPix format version 1.0 Other - reserved

 

PropertyTagExifColorSpace

Color space specifier. Normally sRGB (=1) is used to define the color space based on the PC monitor conditions and environment. If a color space other than sRGB is used, Uncalibrated (=0xFFFF) is set. Image data recorded as Uncalibrated can be treated as sRGB when it is converted to FlashPix.

Tag

0xA001

Type

PropertyTagTypeShort

Count

1

0x1 - sRGB 0xFFFF - uncalibrated Other - reserved

 

PropertyTagExifPixXDim

Information specific to compressed data. When a compressed file is recorded, the valid width of the meaningful image must be recorded in this tag, whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file.

Tag 0xA002
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagExifPixYDim

Information specific to compressed data. When a compressed file is recorded, the valid height of the meaningful image must be recorded in this tag whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file. Because data padding is unnecessary in the vertical direction, the number of lines recorded in this valid image height tag will be the same as that recorded in the SOF.

Tag 0xA003
Type PropertyTagTypeShort or PropertyTagTypeLong
Count 1

 

PropertyTagExifRelatedWav

The name of an audio file related to the image data. The only relational information recorded is the EXIF audio file name and extension (an ASCII string that consists of 8 characters plus a period (.), plus 3 characters). The path is not recorded. When you use this tag, audio files must be recorded in conformance with the EXIF audio format. Writers can also store audio data within APP2 as FlashPix extension stream data.

Tag 0xA004
Type PropertyTagTypeASCII
Count 13

 

PropertyTagExifInterop

Offset to a block of property items that contain interoperability information.

Tag 0xA005
Type PropertyTagTypeLong
Count 1

 

PropertyTagExifFlashEnergy

Strobe energy, in Beam Candle Power Seconds (BCPS), at the time the image was captured.

Tag 0xA20B
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifSpatialFR

Camera or input device spatial frequency table and SFR values in the image width, image height, and diagonal direction, as specified in ISO 12233.

Tag 0xA20C
Type PropertyTagTypeUndefined
Count Any

 

PropertyTagExifFocalXRes

Number of pixels in the image width (x) direction per unit on the camera focal plane. The unit is specified in PropertyTagExifFocalResUnit.

Tag 0xA20E
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifFocalYRes

Number of pixels in the image height (y) direction per unit on the camera focal plane. The unit is specified in PropertyTagExifFocalResUnit.

Tag 0xA20F
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifFocalResUnit

Unit of measure for PropertyTagExifFocalXRes and PropertyTagExifFocalYRes.

Tag

0xA210

Type

PropertyTagTypeShort

Count

1

2 - inch 3 - centimeter

 

PropertyTagExifSubjectLoc

Location of the main subject in the scene. The value of this tag represents the pixel at the center of the main subject relative to the left edge. The first value indicates the column number, and the second value indicates the row number.

Tag 0xA214
Type PropertyTagTypeShort
Count 2

 

PropertyTagExifExposureIndex

Exposure index selected on the camera or input device at the time the image was captured.

Tag 0xA215
Type PropertyTagTypeRational
Count 1

 

PropertyTagExifSensingMethod

Image sensor type on the camera or input device.

Tag

0xA217

Type

PropertyTagTypeShort

Count

1

1 - not defined 2 - one-chip color area sensor 3 - two-chip color area sensor 4 - three-chip color area sensor 5 - color sequential area sensor 7 - trilinear sensor 8 - color sequential linear sensor Other - reserved

 

PropertyTagExifFileSource

The image source. If a DSC recorded the image, the value of this tag is 3.

Tag 0xA300
Type PropertyTagTypeUndefined
Count 1

 

PropertyTagExifSceneType

The type of scene. If a DSC recorded the image, the value of this tag must be set to 1, indicating that the image was directly photographed.

Tag 0xA301
Type PropertyTagTypeUndefined
Count 1

 

PropertyTagExifCfaPattern

The color filter array (CFA) geometric pattern of the image sensor when a one-chip color area sensor is used. It does not apply to all sensing methods.

Tag 0xA302
Type PropertyTagTypeUndefined
Count Any

 

Image File Format Specifications

Image Property Tag Constants

Image Property Tag Type Constants

Property Tags in Alphabetical Order

Property Tags in Numerical Order

Reading and Writing Metadata