Native Image Format Metadata Queries

Article
01/26/2022

This topic provides an overview of the metadata query language queries for reading and writing metadata supported by GIF, PNG, TIFF and JPEG images.It includes metadata that is specific to each image format, as well as metadata that is supported by multiple formats.

This topic contains the following sections.

Prerequisites
Photo Metadata Policy Expression
File Format Specific Metadata
File Format Independent Metadata
Related topics

Prerequisites

To understand this topic, you should be familiar with the Windows Imaging Component (WIC) metadata system as described in the WIC Metadata Overview. You should also be familiar with the query language used to read and write metadata, as described in Metadata Query Language Overview.

Photo Metadata Policy Expression

In addition to supporting the metadata query language, WIC also accepts canonical property names from the Windows Property System. WIC supports a subset of the Windows property namespace that is relevant to image formats, as described in Photo Metadata Policies. A Windows property that is used as a WIC metadata query is referred to as a photo metadata policy expression.

For example, the photo metadata policy expression for the EXIF orientation flag is:

System.Photo.Orientation

In general, policy expressions are recommended over native metadata queries for common image metadata items that are covered by the Windows property namespace. The metadata query language is best suited for cases where low-level access to specific image metadata items is needed, or for custom or advanced metadata items that are not supported by the Windows property system. For more information, see Photo Metadata Policy Expressions.

File Format Specific Metadata

The following sections contain tables that list the available metadata queries for each image file type. Each table has the following columns:

Path - The query path used to retrieve the metadata item.
Name - The name of the metadata item.
Type - The type of the metadata item retrieved from the query path. Metadata retrieved by WIC is returned in the form of PROPVARIANT, which reports the data type using the VARTYPE enumeration.on.

The query paths are used by the WIC metadata API to access the embedded metadata of an image. The following example code demonstrates using an IWICMetadataQueryReader to query for a JPEG's IFD metadata block.

// Not shown: image decoding 
IWICMetadataQueryReader *pQueryReader = NULL;
IWICMetadataQueryReader *pIFDReader = NULL;

// Get the query reader.
if (SUCCEEDED(hr))
{
    hr = pFrameDecode->GetMetadataQueryReader(&pQueryReader);
}

if (SUCCEEDED(hr))
{
    // Get the nested IFD reader.
    hr = pQueryReader->GetMetadataByName(L"/app1/ifd", &value);
    if (value.vt == VT_UNKNOWN)
    {
        hr = value.punkVal->QueryInterface(IID_IWICMetadataQueryReader, (void **)&pIFDReader);
    }
    PropVariantClear(&value); // Clear value for new query.
}

GIF Metadata

The Graphics Interchange Format (GIF) image format supports both global and frame level metadata. The following two sections provide the metadata query paths available for GIF's global and frame level metadata.

Note

For a full list of GIF metadata along with more detailed information, see the GIF standard on the W3C website.

Global Metadata

The following table provides the available metadata query paths that can be used to access global GIF metadata.

Path	Name	Type
/commentext or /[]commentext where = 0 to N	Comment Extension	VT_UNKNOWN - A query reader/writer
/commentext/TextEntry		VT_LPSTR
/logscrdesc	Logical Screen Description	VT_UNKNOWN - A query reader/writer
/logscrdesc/Signature		VT_UI1 \| VT_VECTOR
/logscrdesc/Width		VT_UI2
/logscrdesc/Height		VT_UI2
/logscrdesc/GlobalColorTableFlag		VT_BOOL
/logscrdesc/ColorResolution		VT_UI1
/logscrdesc/SortFlag		VT_BOOL
/logscrdesc/GlobalColorTableSize		VT_UI1
/logscrdesc/BackgroundColorIndex		VT_UI1
/logscrdesc/PixelAspectRatio		VT_UI1
/appext or /[]appext where = 0 to N	Application Extension	VT_UNKNOWN - A query reader/writer
/appext/Application		VT_UI1 \| VT_VECTOR
/appext/Data		VT_UI1 \| VT_VECTOR

Frame Metadata

The following table provides the available metadata query paths that can be used to access frame level GIF metadata.

Path	Name	Type
/grctlext	Graphic Control Extension	VT_UNKNOWN - query reader/writer
/grctlext/Disposal		VT_UI1
/grctlext/UserInputFlag		VT_BOOL
/grctlext/TransparencyFlag		VT_BOOL
/grctlext/Delay		VT_UI2
/grctlext/TransparentColorIndex		VT_UI1
/imgdesc	Image Descriptor	VT_UNKNOWN - query reader/writer
/imgdesc/Left		VT_UI2
/imgdesc/Top		VT_UI2
/imgdesc/Width		VT_UI2
/imgdesc/Height		VT_UI2
/imgdesc/LocalColorTableFlag		VT_BOOL
/imgdesc/InterlaceFlag		VT_BOOL
/imgdesc/SortFlag		VT_BOOL
/imgdesc/LocalColorTableSize		VT_UI1

PNG Metadata

The Portable Network Graphics (PNG) image format supports frame level metadata.

Note

For a full list of PNG metadata along with more detailed information, see the PNG standard on the W3C website.

Frame Metadata

The following table provides the available metadata query paths that can be used to access frame level PNG metadata.

Path	Name	Type
/tEXt or /[]tEXt where = 0 to N	Text Chunk	VT_UNKNOWN - tEXt query reader/writer
/tEXt/{str=} where = identifying keyword for text		VT_LPSTR
/gAMA	Gama Chunk	VT_UNKNOWN - gAMA query reader/writer
/gAMA/ImageGamma		VT_UI4
/iTXt or /[]iTXt where = 0 to N	IText Chunk	VT_UNKNOWN - iTXt query reader/writer
/iTXt/Keyword		VT_LPSTR
/iTXt/CompressionFlag		VT_UI1
/iTXt/LanguageTag		LPSTR
/iTXt/TranslatedKeyword		LPWSTR
/iTXt/TextEntry		LPWSTR
/cHRM	HRM Chunk	VT_UNKNOWN - cHRM query reader/writer
/cHRM/WhitePointX		VT_UI4
/cHRM/WhitePointY		VT_UI4
/cHRM/RedX		VT_UI4
/cHRM/RedY		VT_UI4
/cHRM/GreenX		VT_UI4
/cHRM/GreenY		VT_UI4
/cHRM/BlueX		VT_UI4
/cHRM/BlueY		VT_UI4
/sRGB	sRGB Chuck	VT_UNKNOWN - sRGB query reader/writer
/sRGB/RenderingIntent		VT_UI1
/tIME	Time Chunk	VT_UNKNOWN - tIME query reader/writer
/tIME/Year		VT_UI2
/tIME/Month		VT_UI1
/tIME/Day		VT_UI1
/tIME/Hour		VT_UI1
/tIME/Minute		VT_UI1
/tIME/Second		VT_UI1
/bKGD	Background Chunk	VT_UNKNOWN - bKGB query reader/writer
/bKGD/BackgroundColor		VT_UI1, VT_UI2 or VT_UI2 \| VT_VECTOR
/hIST	hIST Chunk	VT_UNKNOWN - hIST query reader/writer
/hIST/Frequencies		VT_VECTOR \| VT_UI2
/iCCP	iCCP Chunk	VT_UNKNOWN - iCCP query reader/writer
/iCCP/ProfileName		VT_LPSTR
/iCCP/ProfileData		VT_VECTOR \| VT_UI1

TIFF Metadata

The Tagged Image File Format (TIFF) image format supports frame level metadata.

Note

For a full list of TIFF metadata along with more detailed information, see the TIFF standard.

Frame Metadata

The following table provides the available metadata query paths that can be used to access frame level TIFF metadata.

Path	Name	Type
/ifd	0 IFD	VT_UNKNOWN - A query reader/writer
/ifd/{ushort=} where = 0 to 65535	IFD Entry by ID	Variable
/ifd/thumb or /ifd/{ushort=330}	Thumbnail IFD	VT_UNKNOWN - A query reader/writer
/ifd/xmp or /ifd/{ushort=700}	XMP	VT_UNKNOWN - A query reader/writer
/ifd/exif or /ifd/{ushort=34665}	EXIF	VT_UNKNOWN - A query reader/writer
/ifd/gps or /ifd/{ushort=34853}	GPS	VT_UNKNOWN - A query reader/writer
/ifd/exif/interop or /ifd/exif/{ushort=40965}	Interop	VT_UNKNOWN - A query reader/writer
/ifd/iptc or /ifd/{ushort=33723}	IPTC	VT_UNKNOWN - A query reader/writer
/ifd/iptc/{str=} where = IPTC keyword	IPTC Entry	Variable
/ifd/irb/8bimiptc/iptc	IPTC	VT_UNKNOWN - A query reader/writer
/ifd/irb/8bimiptc/iptc/{str=*}	IPTC Entry	Variable

JPEG Metadata

The JPEG image format supports frame level metadata.

Note

For full list of JPEG metadata along with more detailed information, see the EXIF JPEG standard.

Frame Metadata

The following table provides the available metadata query paths that can be used to access frame level JPEG metadata.

Path	Name	Type
/app0	App0	VT_UNKNOWN - App0 Query Reader/Writer
/app0/{ushort=0}	Version	VT_UI2
/app0/{ushort=1}	Units	VT_UI1
/app0/{ushort=2}	DpiX	VT_UI2
/app0/{ushort=3}	DpiY	VT_UI2
/app0/{ushort=4}	Xthumbnail	VT_UI1
/app0/{ushort=5}	Ythumbnail	VT_UI1
/app0/{ushort=6}	ThumbnailData	VT_BLOB
/app1	App1	VT_UNKNOWN - App1 Query Reader/Writer
/app1/ifd or /app1/{ushort=0}	0 IFD	VT_UNKNOWN - IFD Query Reader/Writer
/app1/ifd/exif or /app1/ifd/{ushort=34665}	EXIF IFD	VT_UNKNOWN – EXIF Query Reader/Writer
/app1/thumb or /app1/{ushort=1}	Thumbnail IFD	VT_UNKNOWN - SubIFD Query Reader/Writer
/app13	App13	VT_UNKNOWN - App13 Query Reader/Writer
/app13/irb or /app13/{ushort=0}	IRB	VT_UNKNOWN - IRB Query Reader/Writer
/app13/irb/{ulonglong=} where = IRB Identifier (see IRB spec)	IRB Entry	VT_UNKNOWN - Unknown Query Reader/Writer
/app13/irb/{ulonglong=*}/{}	IRB Entry Contents	VT_BLOB
/app13/irb/8bimiptc or /app13/irb/{ulonglong=61857348781060}	8BIMIPTC	VT_UNKNOWN - 8BIMIPTC Query Reader/Writer
/app13/irb/8bimiptc/iptc	IPTC	VT_UNKNOWN - IPTC Query Reader/Writer
/app13/irb/8bimiptc/iptc/{str=*}	IPTC Entry	Variable
/app13/irb/8bimResInfo or /app13/irb/{ulonglong=61857348781037}	8BIM Resolution Info	VT_UNKNOWN - Query Reader/Writer
/app13/irb/8bimResInfo/PString		VT_LPSTR
/app13/irb/8bimResInfo/HResolution		VT_UI4
/app13/irb/8bimResInfo/VResolution		VT_UI4
/app13/irb/8bimResInfo/WidthUnit		VT_UI2
/app13/irb/8bimResInfo/HeightUnit		VT_UI2
/app13/irb/8bimResInfo/HResolutionUnit		VT_UI2
/app13/irb/8bimResInfo/VResolutionUnit		VT_UI2
/com	JPEG Comment	VT_UNKNOWN - Comment Query Reader/Writer
/com/TextEntry		LPSTR
/luminance	Luminance	VT_UNKNOWN - Luminance Query Reader/Writer
/luminance/TableEntry		VT_UI1 \| VT_VECTOR
/chrominance	Chrominance	VT_UNKNOWN - Chrominance Query Reader/Writer
/chrominance/TableEntry		VT_UI1 \| VT_VECTOR
/xmp	XMP	VT_UNKNOWN - XMP Query Reader/Writer

File Format Independent Metadata

The following sections contain information concerning metadata formats that are supported by multiple image formats. Each table has the following columns:

Relative Path - The query path used to retrieve the metadata item, relative to the metadata block.
Name - The name of the metadata item.
Type - The type of the metadata item retrieved from the query path. Metadata retrieved by WIC is returned in the form of PROPVARIANT, which reports the data type using the VARTYPE enumeration.

Note

The tables here only provide the relative path to access a metadata item within the particular metadata format. To get the fully qualified metadata query, append this relative path to the metadata block query for the particular metadata format.

For example, to access the Orientation flag in a JPEG file, use the following expression:

/app1/ifd/{ushort=274}

In a TIFF file, use the following expression:

/ifd/{ushort=274}

In this example, note that different image formats may store a particular metadata block differently, and so the fully qualified metadata query to access a particular metadata item may be image format specific. See each format’s table to find the appropriate metadata query to access a particular metadata block.

IFD Metadata

An IFD, or Image File Directory, is a data structure defined in the TIFF standard that can contain image metadata. It identifies each metadata item using a tag of type ushort. JPEG, TIFF, and JPEG-XR support IFD metadata. Third party formats, like some camera raw formats, may also support IFD metadata.

The table here provides relative metadata query paths to access some commonly used IFD metadata items. The IFD data structure allows for third party extensibility and this table is not an exhaustive list. See the TIFF standard for more information.

Note

Although JPEG and other formats support the IFD data structure, they may not use all of the metadata items that it defines. Refer to each format’s standard for more information.

Note

Certain metadata items in the table here require additional interpretation or information to properly use, refer to the TIFF standard. For example, the PhotometricInterpretation metadata item returns a PROPVARIANT of type VT_UI2. However, according to the TIFF standard it is interpreted as an enumeration. See the TIFF standard for more information.

Relative Path	Name	Type
/{ushort=256}	ImageWidth	VT_UI2 or VT_UI4
/{ushort=257}	ImageLength	VT_UI2 or VT_UI4
/{ushort=258}	BitsPerSample	VT_UI2
/{ushort=259}	Compression	VT_UI2
/{ushort=262}	PhotometricInterpretation	VT_UI2
/{ushort=274}	Orientation	VT_UI2
/{ushort=277}	SamplesPerPixel	VT_UI2
/{ushort=284}	PlanarConfiguration	VT_UI2
/{ushort=530}	YCbCrSubSampling	VT_VECTOR \| VT_UI2
/{ushort=531}	YCbCrPositioning	VT_UI2
/{ushort=282}	XResolution	VT_UI8
/{ushort=283}	YResolution	VT_UI8
/{ushort=296}	ResolutionUnit	VT_UI2
/{ushort=306}	DateTime	VT_LPSTR
/{ushort=270}	ImageDescription	VT_LPSTR
/{ushort=271}	Make	VT_LPSTR
/{ushort=272}	Model	VT_LPSTR
/{ushort=305}	Software	VT_LPSTR
/{ushort=315}	Artist	VT_LPSTR
/{ushort=33432}	Copyright	VT_LPSTR
/{ushort=338}	ExtraSamples	VT_UI2
/{ushort=254}	NewSubfileType	VT_UI4
/{ushort=278}	RowsPerStrip	VT_UI2 or VT_UI4
/{ushort=279}	StripByteCounts	VT_VECTOR \| VT_UI2 or VT_VECTOR \| VT_UI4
/{ushort=273}	StripOffsets	VT_VECTOR \| VT_UI2 or VT_VECTOR \| VT_UI4

EXIF Metadata

EXIF metadata is defined as part of the EXIF JPEG specification. EXIF metadata is based on the IFD data structure as defined in the TIFF standard, and provides additional attributes such as information about the devices and photographic attributes used to create the image. It identifies each metadata item using a tag of type ushort. JPEG, TIFF, and JPEG-XR support EXIF metadata. Third party formats, such as some camera raw formats, may also support EXIF metadata.

The following table provides relative metadata query paths to access some commonly used EXIF metadata items. The EXIF data structure allows for third party extensibility and this table is not an exhaustive list; refer to the EXIF standard for more information.

Note

Many EXIF metadata items are defined in the EXIF standard as type "RATIONAL" or "SRATIONAL". A "RATIONAL" consists of a numerator and denominator, both of which are 32 bit unsigned integers. The numerator is contained in the high 32 bits, and the denominator in the low 32 bits. In WIC, these are returned as PROPVARIANT with a type of VT_UI8 or VT_I8, respectively; the actual value is stored as ULARGE_INTEGER or LARGE_INTEGER, respectively. To access the numerator and denominator, read the HighPart and LowPart members of the ULARGE_INTEGER or LARGE_INTEGER value.

Note

Certain metadata items in the below table require additional interpretation or information to properly use. For example, the ColorSpace metadata item returns a PROPVARIANT of type VT_UI2. However, according to the EXIF standard it is interpreted as an enumeration. See the EXIF standard for more information.

Relative Path	Name	Type
/{ushort=36864}	ExifVersion	VT_BLOB
/{ushort=40960}	FlashpixVersion	VT_BLOB
/{ushort=40961}	ColorSpace	VT_UI2
/{ushort=40962}	PixelXDimension	VT_UI2 or VT_UI4
/{ushort=40963}	PixelYDimension	VT_UI2 or VT_UI4
/{ushort=37500}	MakerNote	VT_BLOB
/{ushort=37510}	UserComment	VT_LPWSTR
/{ushort=36867}	DateTimeOriginal	VT_LPSTR
/{ushort=36868}	DateTimeDigitized	VT_LPSTR
/{ushort=42016}	ImageUniqueID	VT_LPSTR
/{ushort=42032}	CameraOwnerName	VT_LPSTR
/{ushort=42033}	BodySerialNumber	VT_LPSTR
/{ushort=42034}	LensSpecification	VT_VECTOR \| VT_UI8
/{ushort=42035}	LensMake	VT_LPSTR
/{ushort=42036}	LensModel	VT_LPSTR
/{ushort=42037}	LensSerialNumber	VT_LPSTR
/{ushort=33434}	ExposureTime	VT_UI8
/{ushort=33437}	FNumber	VT_UI8
/{ushort=34850}	ExposureProgram	VT_UI2
/{ushort=34852}	SpectralSensitivity	VT_LPSTR
/{ushort=34855}	PhotographicSensitivity	VT_VECTOR \| VT_UI2
/{ushort=34856}	OECF	VT_BLOB
/{ushort=34864}	SensitivityType	VT_UI2
/{ushort=34865}	StandardOutputSensitivity	VT_UI4
/{ushort=34866}	RecommendedExposureIndex	VT_UI4
/{ushort=34867}	ISOSpeed	VT_UI4
/{ushort=34868}	ISOSpeedLatitudeyyy	VT_UI4
/{ushort=34869}	ISOSpeedLatitudezzz	VT_UI4
/{ushort=37377}	ShutterSpeedValue	VT_I8
/{ushort=37378}	ApertureValue	VT_UI8
/{ushort=37379}	BrightnessValue	VT_I8
/{ushort=37380}	ExposureBiasValue	VT_I8
/{ushort=37381}	MaxApertureValue	VT_UI8
/{ushort=37382}	SubjectDistance	VT_UI8
/{ushort=37383}	MeteringMode	VT_UI2
/{ushort=37384}	LightSource	VT_UI2
/{ushort=37385}	Flash	VT_UI2
/{ushort=37386}	FocalLength	VT_UI8
/{ushort=37396}	SubjectArea	VT_VECTOR \| VT_UI2
/{ushort=41483}	FlashEnergy	VT_UI8
/{ushort=41484}	SpatialFrequencyResponse	VT_BLOB
/{ushort=41486}	FocalPlaneXResolution	VT_UI8
/{ushort=41487}	FocalPlaneYResolution	VT_UI8
/{ushort=41488}	FocalPlaneResolutionUnit	VT_UI2
/{ushort=41492}	SubjectLocation	VT_VECTOR \| VT_UI2
/{ushort=41493}	ExposureIndex	VT_UI8
/{ushort=41495}	SensingMethod	VT_UI2
/{ushort=41728}	FileSource	VT_BLOB
/{ushort=41729}	SceneType	VT_BLOB
/{ushort=41730}	CFAPattern	VT_BLOB
/{ushort=41985}	CustomRendered	VT_UI2
/{ushort=41986}	ExposureMode	VT_UI2
/{ushort=41987}	WhiteBalance	VT_UI2
/{ushort=41988}	DigitalZoomRatio	VT_UI8
/{ushort=41989}	FocalLengthIn35mmFilm	VT_UI2
/{ushort=41990}	SceneCaptureType	VT_UI2
/{ushort=41991}	GainControl	VT_UI8
/{ushort=41992}	Contrast	VT_UI2
/{ushort=41993}	Saturation	VT_UI2
/{ushort=41994}	Sharpness	VT_UI2
/{ushort=41995}	DeviceSettingDescription	VT_BLOB
/{ushort=41996}	SubjectDistanceRange	VT_UI2

GPS Metadata

GPS metadata contains geolocation information and is defined as part of the EXIF JPEG specification. It identifies each metadata item using a tag of type ushort. JPEG, TIFF, and JPEG-XR support GPS metadata; third party formats, like some camera raw formats, may also support GPS metadata.

The following table provides relative metadata query paths to access some commonly used GPS metadata items. This table is not an exhaustive list; refer to the EXIF standard for more information.

Note

Many GPS metadata items are defined in the EXIF standard as type "RATIONAL". A "RATIONAL" consists of a numerator and denominator, both of which are 32 bit unsigned integers. The numerator is contained in the high 32 bits, and the denominator in the low 32 bits. In WIC, these are returned as PROPVARIANT with a type of VT_UI8. The actual value is stored as ULARGE_INTEGER. To access the numerator and denominator, read the HighPart and LowPart members of the ULARGE_INTEGER value.

Note

Certain metadata items in the table here require additional interpretation or information to properly use. For example, the GPSLatitudeRef metadata item returns a PROPVARIANT of type VT_LPSTR. According to the EXIF standard this string is either "N" or "S", representing North or South latitude. See the EXIF standard for more information.

Relative Path	Name	Type
{ushort=0}	GPSVersionID	VT_VECTOR \| VT_UI1
{ushort=1}	GPSLatitudeRef	VT_LPSTR
{ushort=2}	GPSLatitude	VT_VECTOR \| VT_UI8
{ushort=3}	GPSLongitudeRef	VT_LPSTR
{ushort=4}	GPSLongitude	{ushort=4} GPSLongitude VT_VECTOR \| VT_UI8
{ushort=5}	GPSAltitudeRef	VT_UI1
{ushort=6}	GPSAltitude	VT_UI8
{ushort=7}	GPSTimeStamp	VT_VECTOR \| VT_UI8
{ushort=8}	GPSSatellites	VT_LPSTR
{ushort=9}	GPSStatus	VT_LPSTR
{ushort=10}	GPSMeasureMode	VT_LPSTR
{ushort=11}	GPSDOP	VT_UI8
{ushort=12}	GPSSpeedRef	VT_LPSTR
{ushort=13}	GPSSpeed	VT_UI8
{ushort=14}	GPSTrackRef	VT_LPSTR
{ushort=15}	GPSTrack	VT_UI8

XMP Metadata

XMP is an XML-based, extensible metadata standard. Metadata items can be hierarchical and contain complex data structures. JPEG, TIFF, and JPEG-XR support XMP metadata. Third party formats, like some camera raw formats, may also support XMP metadata.

The XMP standard can be obtained from: https://www.adobe.com/devnet/xmp.html.

XMP and allows third party entities to publish their own schemas, or namespaces, which allow them to define new metadata items without having to modify the XMP standard. An XMP schema is uniquely identified by a URL, but WIC provides a set of friendly identifiers for well-known schemas.

XMP metadata items are identified by a string name as well as a schema identifier. As a best practice, every XMP metadata query should specify both the schema and name. If the schema identifier is missing, then JPEG will attempt to match the metadata name across all of the namespaces present within the XMP metadata packet.

For example, to obtain the Rating property as defined by the XMP schema in a JPEG image, use the following query:

/xmp/{wstr=https://ns.adobe.com/xap/1.0/}:Rating

The first part, "/xmp", retrieves the XMP metadata reader/writer for the image. "https://ns.adobe.com/xap/1.0/" is the URL of the XMP schema, as defined in the XMP standard. The URL is enclosed in a data expression to allow the use of characters such as a forward slash (/). Finally, "Rating" is the actual metadata item name as defined by the XMP schema and it is separated from the schema identifier by a colon (:).

In this example, WIC provides a friendly identifier for the XMP schema which can be used in place of the full URL. So, the previous query can be rewritten as:

/xmp/xmp:Rating

WIC provides friendly schema prefixes for the following commonly used schemas:

Schema Prefix	Schema URL	Link to Standard
rdf	https://www.w3.org/1999/02/22-rdf-syntax-ns#	https://www.w3.org/TR/REC-rdf-syntax/
dc	https://purl.org/dc/elements/1.1/	https://www.adobe.com/devnet/xmp.html
xmp	https://ns.adobe.com/xap/1.0/	https://www.adobe.com/devnet/xmp.html
xmpidq	`https://ns.adobe.com/xmp/Identifier/qual/1.0/`	https://www.adobe.com/devnet/xmp.html
xmpRights	https://ns.adobe.com/xap/1.0/rights/	https://www.adobe.com/devnet/xmp.html
xmpMM	https://ns.adobe.com/xap/1.0/mm/	https://www.adobe.com/devnet/xmp.html
xmpBJ	https://ns.adobe.com/xap/1.0/bj/	https://www.adobe.com/devnet/xmp.html
xmpTPg	https://ns.adobe.com/xap/1.0/t/pg/	https://www.adobe.com/devnet/xmp.html
pdf	https://ns.adobe.com/pdf/1.3/	https://www.adobe.com/devnet/xmp.html
photoshop	https://ns.adobe.com/photoshop/1.0/	https://www.adobe.com/devnet/xmp.html
tiff	https://ns.adobe.com/tiff/1.0/	https://www.adobe.com/devnet/xmp.html
exif	https://ns.adobe.com/exif/1.0/	https://www.adobe.com/devnet/xmp.html
stDim	https://ns.adobe.com/xap/1.0/sType/Dimensions#	https://www.adobe.com/devnet/xmp.html
xapGImg	https://ns.adobe.com/xap/1.0/g/img/	https://www.adobe.com/devnet/xmp.html
stEvt	https://ns.adobe.com/xap/1.0/sType/ResourceEvent#	https://www.adobe.com/devnet/xmp.html
stRef	https://ns.adobe.com/xap/1.0/sType/ResourceRef#	https://www.adobe.com/devnet/xmp.html
stVer	https://ns.adobe.com/xap/1.0/sType/Version#	https://www.adobe.com/devnet/xmp.html
stJob	https://ns.adobe.com/xap/1.0/sType/Job#	https://www.adobe.com/devnet/xmp.html
aux	`https://ns.adobe.com/exif/1.0/aux/`	https://www.adobe.com/devnet/xmp.html
crs	https://ns.adobe.com/camera-raw-settings/1.0/	https://www.adobe.com/devnet/xmp.html
xmpDM	https://ns.adobe.com/xmp/1.0/DynamicMedia/	https://www.adobe.com/devnet/xmp.html
Iptc4xmpCore	https://iptc.org/std/Iptc4xmpCore/1.0/xmlns/	https://www.iptc.org/cms/site/index.html?channel=CH0099
MicrosoftPhoto	`https://ns.microsoft.com/photo/1.0/`	People Tagging Overview
MP	`https://ns.microsoft.com/photo/1.2/`	People Tagging Overview
MPRI	`https://ns.microsoft.com/photo/1.2/t/RegionInfo\#`	People Tagging Overview
MPReg	`https://ns.microsoft.com/photo/1.2/t/Region\#`	People Tagging Overview

If there is no friendly schema prefix for a particular schema, for example if an image contains XMP metadata using a custom third party schema, the metadata query should use the full schema URL.

Conceptual
Windows Imaging Component Overview
WIC Metadata Overview
Metadata Query Language Overview
Metadata Extensibility Overview
How-to: Re-encode a JPEG Image with Metadata

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Native Image Format Metadata Queries

Prerequisites

Photo Metadata Policy Expression

File Format Specific Metadata

GIF Metadata

Global Metadata

Frame Metadata

PNG Metadata

Frame Metadata

TIFF Metadata

Frame Metadata

JPEG Metadata

Frame Metadata

File Format Independent Metadata

IFD Metadata

EXIF Metadata

GPS Metadata

XMP Metadata

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Additional resources

Share via

Native Image Format Metadata Queries

Prerequisites

Photo Metadata Policy Expression

File Format Specific Metadata

GIF Metadata

Global Metadata

Frame Metadata

PNG Metadata

Frame Metadata

TIFF Metadata

Frame Metadata

JPEG Metadata

Frame Metadata

File Format Independent Metadata

IFD Metadata

EXIF Metadata

GPS Metadata

XMP Metadata

Related topics

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Additional resources