kCGImagePropertyIPTCSource The original owner of the image. Declarationlet kCGImagePropertyIPTCSource: CFString See AlsoPersonnelkCGImagePropertyIPTCBylinekCGImagePropertyIPTCBylineTitlekCGImagePropertyIPTCContactkCGImagePropertyIPTCWriterEditorkCGImagePropertyIPTCCreatorContactInfoIPTC Creator Contact Info Dictionary Keys