XMP Specification September 2005 55 XMP Schemas Photoshop Schema 4 Photoshop Schema This schema specifies properties used by Adobe Photoshop. ● The schema namespace URI is http://ns.adobe.com/photoshop/1.0/ ● The preferred schema namespace prefix is photoshop Property Value Type Category Description photoshop:AuthorsPosition Text External By-line title. photoshop:CaptionWriter ProperName External Writer/editor. photoshop:Category Text External Category. Limited to 3 7-bit ASCII characters. photoshop:City Text External City. photoshop:Country Text External Country/primary location. photoshop:Credit Text External Credit. photoshop:DateCreated Date External The date the intellectual content of the document was created (rather than the creation date of the physical representation), following IIM conventions. For example, a photo taken during the American Civil War would have a creation date during that epoch (1861-1865) rather than the date the photo was digitized for archiving. photoshop:Headline Text External Headline. photoshop:Instructions Text External Special instructions. photoshop:Source Text External Source. photoshop:State Text External Province/state. photoshop: SupplementalCategories bag Text External Supplemental category. photoshop: TransmissionReference Text External Original transmission reference. photoshop:Urgency Integer External Urgency. Valid range is 1-8.