| Field | Type | Exiftool | Adobe XMP | DCMI |
|---|---|---|---|---|
| Altitude | decimal | GlobalAltitude, GPSAltitude | ||
| Aperture | decimal | ApertureValue, Aperture | ||
| FNumber | decimal | FNumber | ||
| FPS | decimal | VideoFrameRate, VideoAvgFrameRate | ||
| FocalDistance | decimal | HyperfocalDistance | ||
| Duration | duration | Duration, MediaDuration, TrackDuration, PreviewDuration | ||
| Favorite | flag | Favorite | ||
| Flash | flag | FlashFired | ||
| Keywords | list | Keywords | ||
| FocalLength | number | FocalLength, FocalLengthIn35mmFormat | ||
| Frames | number | FrameCount, AnimationFrames | ||
| Height | number | ImageHeight, ImageLength, PixelYDimension, ExifImageHeight, SourceImageHeight | ||
| ImageType | number | HDRImageType | ||
| Iso | number | ISO | ||
| Pages | number | PageCount, NPages, Pages | ||
| Rotation | number | Rotation | ||
| Width | number | ImageWidth, PixelXDimension, ExifImageWidth, SourceImageWidth | ||
| Artist | text | Artist, Creator, By-line, OwnerName, Owner | Creator | |
| CameraMake | text | CameraMake, Make | Make | |
| CameraModel | text | CameraModel, Model, CameraID, UniqueCameraModel | CameraModel, Model | |
| CameraOwner | text | OwnerName | ||
| CameraSerial | text | SerialNumber | ||
| Caption | text | Description, ImageDescription, Caption, Caption-Abstract | Description, Description.Alt | |
| Codec | text | CompressorID, VideoCodecID, CodecID, OtherFormat, FileType | ||
| ColorProfile | text | ICCProfileName, ProfileDescription | ||
| Copyright | text | Rights, Copyright, CopyrightNotice, WebStatement | Rights, Rights.Alt | |
| DocumentID | text | ContentIdentifier, MediaGroupUUID, BurstUUID, OriginalDocumentID, DocumentID, ImageUniqueID, DigitalImageGUID | ||
| Exposure | text | ExposureTime, ShutterSpeedValue, ShutterSpeed, TargetExposureTime | ||
| FileName | text | FileName | ||
| GPSLatitude | text | GPSLatitude | ||
| GPSLongitude | text | GPSLongitude | ||
| GPSPosition | text | GPSPosition | ||
| InstanceID | text | InstanceID, DocumentID | ||
| LensMake | text | LensMake | ||
| LensModel | text | LensModel, Lens, LensID | LensModel, Lens | |
| License | text | UsageTerms, License | ||
| Notes | text | Comment, UserComment | ||
| Projection | text | ProjectionType | ||
| Software | text | Software, Producer, CreatorTool, Creator, CreatorSubTool, HistorySoftwareAgent, ProcessingSoftware | ||
| Subject | text | Subject, PersonInImage, ObjectName, HierarchicalSubject, CatalogSets | Subject | |
| TimeOffset | text | OffsetTime, OffsetTimeOriginal, OffsetTimeDigitized | ||
| Title | text | Title, Headline | dc:title | title, title.Alt |
| CreatedAt | timestamp | SubSecCreateDate, CreationTime, CreationDate, CreateDate, MediaCreateDate, ContentCreateDate, TrackCreateDate | ||
| TakenAt | timestamp | SubSecDateTimeOriginal, SubSecDateTimeCreated, DateTimeOriginal, CreationTime, CreationDate, DateTimeCreated, DateTime, DateTimeDigitized | DateCreated, CreationTime | |
| TakenAtLocal | timestamp | SubSecDateTimeOriginal, SubSecDateTimeCreated, DateTimeOriginal, CreationDate, DateTimeCreated, DateTime, DateTimeDigitized | ||
| TakenGps | timestamp | GPSDateTime, GPSDateStamp |
Metadata Tags by Namespace
| Namespace | Documentation |
|---|---|
| Exiftool Exif | 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.
PhotoPrism® Documentation
For more information on specific features, services and related resources, please refer to the other documentation available in our Knowledge Base and User Guide:
