Field Type Exiftool Adobe XMP DCMI
Altitude decimal GlobalAltitude, GPSAltitude exif:GPSAltitude
Aperture decimal ApertureValue, Aperture exif:ApertureValue
FNumber decimal FNumber exif:FNumber
FPS decimal VideoFrameRate, VideoAvgFrameRate
FocalDistance decimal HyperfocalDistance
Duration duration Duration, MediaDuration, TrackDuration, PreviewDuration
Favorite flag Favorite fstop:favorite
Flash flag FlashFired exif:Flash/exif:Fired
Keywords list Keywords
FocalLength number FocalLength, FocalLengthIn35mmFormat exif:FocalLength, exif:FocalLengthIn35mmFilm
Frames number FrameCount, AnimationFrames
Height number ImageHeight, ImageLength, PixelYDimension, ExifImageHeight, SourceImageHeight
ImageType number HDRImageType
Iso number ISO exifEX:PhotographicSensitivity, exif:ISOSpeedRatings
Pages number PageCount, NPages, Pages
Rotation number Rotation
Width number ImageWidth, PixelXDimension, ExifImageWidth, SourceImageWidth
Artist text Artist, Creator, By-line, OwnerName, Owner dc:creator creator
CameraMake text CameraMake, Make tiff:Make
CameraModel text CameraModel, Model, CameraID, UniqueCameraModel tiff:Model
CameraOwner text OwnerName aux:OwnerName
CameraSerial text SerialNumber exifEX:BodySerialNumber, aux:SerialNumber
Caption text Description, ImageDescription, Caption, Caption-Abstract dc:description, tiff:ImageDescription description, description.Alt
Codec text CompressorID, VideoCodecID, CodecID, OtherFormat, VideoCodec, FileType
ColorProfile text ICCProfileName, ProfileDescription photoshop:ICCProfile
Copyright text Rights, Copyright, CopyrightNotice, WebStatement dc:rights, tiff:Copyright, xmpRights:WebStatement rights, rights.Alt
DocumentID text ContentIdentifier, MediaGroupUUID, BurstUUID, OriginalDocumentID, DocumentID, ImageUniqueID, DigitalImageGUID xmpMM:OriginalDocumentID, xmpMM:DocumentID, dc:identifier identifier
Exposure text ExposureTime, ShutterSpeedValue, ShutterSpeed, TargetExposureTime exif:ExposureTime, exif:ShutterSpeedValue
FileName text FileName
GPSLatitude text GPSLatitude exif:GPSLatitude
GPSLongitude text GPSLongitude exif:GPSLongitude
GPSPosition text GPSPosition
InstanceID text InstanceID, DocumentID xmpMM:InstanceID
LensMake text LensMake exifEX:LensMake
LensModel text LensModel, Lens, LensID exifEX:LensModel, aux:Lens, aux:LensID
License text UsageTerms, License xmpRights:UsageTerms
Notes text Comment, UserComment exif:UserComment
Projection text ProjectionType GPano:ProjectionType
Software text Software, Producer, CreatorTool, CreatorSubTool, HistorySoftwareAgent, ProcessingSoftware xmp:CreatorTool, tiff:Software
Subject text Subject, PersonInImage, ObjectName, HierarchicalSubject, CatalogSets dc:subject, Iptc4xmpExt:PersonInImage, lr:hierarchicalSubject subject
TimeOffset text OffsetTime, OffsetTimeOriginal, OffsetTimeDigitized exif:OffsetTimeOriginal, exif:OffsetTime, exif:OffsetTimeDigitized
Title text Title, Headline dc:title, photoshop:Headline title, title.Alt
CreatedAt timestamp SubSecCreateDate, CreationTime, CreationDate, CreateDate, MediaCreateDate, ContentCreateDate, TrackCreateDate xmp:CreateDate, xmpDM:CreationDate
TakenAt timestamp SubSecDateTimeOriginal, SubSecDateTimeCreated, DateTimeOriginal, CreationTime, CreationDate, DateTimeCreated, DateTime, DateTimeDigitized photoshop:DateCreated, exif:DateTimeOriginal, xmp:CreateDate
TakenAtLocal timestamp SubSecDateTimeOriginal, SubSecDateTimeCreated, DateTimeOriginal, CreationDate, DateTimeCreated, DateTime, DateTimeDigitized photoshop:DateCreated, exif:DateTimeOriginal, xmp:CreateDate
TakenGps timestamp GPSDateTime, GPSDateStamp exif:GPSTimeStamp, exif:GPSDateStamp

Metadata Tags by Namespace

Namespace Documentation
Exiftool https://exiftool.org/TagNames/EXIF.html
Exiftool XMP https://exiftool.org/TagNames/XMP.html
Adobe XMP https://docs.photoprism.app/developer-guide/metadata/xmp/#specification
Dublin Core (DCMI) https://www.dublincore.org/specifications/dublin-core/dcmi-terms/
IPTC Photo Metadata https://iptc.org/standards/photo-metadata/iptc-standard/

Original media and sidecar files are scanned for Exif and XMP data, as well as proprietary metadata, including Google Photos JSON. The combined information is then normalized, merged, and enriched with additional information.