The copyright could be placed in the comments or the EXIF tag for copyright. But there has been a long used tags in digital image in the IPTC/XMP area of the meta data that include the photographers name, contact information and usage right being granted with the copy of the digital image. Nikon, ,Nik, and Adobe recognize these tags and provide access to them. IPTC, International Press Telecommunications Council, is the long established method used by the Newspaper Association of America (NAA) for keeping track of the source of an image. Adobe has established the Extensible Metadata Platform or XMP model and the IPTC is moving toward this open standard.