The namespace URIs of the XMP schemas a PDF document's metadata commonly uses.
public static class XmpNamespaces
Properties are identified by namespace URI and local name, never by prefix: a packet may bind any prefix to these URIs (ISO 16684-1 §6.2). URIs from ISO 16684-1 §8.3-8.6 (dc, xmp, xmpMM), ISO 32000-2 §14.3.2 (pdf), ISO 19005 (pdfaid) and ISO 14289-1 §5 (pdfuaid).
kind:method, kind:property, kind:ctor. Press Esc to clear.DublinCoreDublin Core, http://purl.org/dc/elements/1.1/, usually prefixed dc (ISO 16684-1 §8.3).PdfAdobe PDF, http://ns.adobe.com/pdf/1.3/, usually prefixed pdf (ISO 32000-2 §14.3.3, Table 349).PdfAIdentificationPDF/A identification, http://www.aiim.org/pdfa/ns/id/, usually prefixed pdfaid (ISO 19005).PdfUAIdentificationPDF/UA identification, http://www.aiim.org/pdfua/ns/id/, usually prefixed pdfuaid (ISO 14289-1 §5).RdfRDF, http://www.w3.org/1999/02/22-rdf-syntax-ns#: the syntax XMP is serialized in (ISO 16684-1 §7.4).XmpXMP basic, http://ns.adobe.com/xap/1.0/, usually prefixed xmp (ISO 16684-1 §8.4).XmpMediaManagementXMP media management, http://ns.adobe.com/xap/1.0/mm/, usually prefixed xmpMM (ISO 16684-1 §8.6).XmpMetaThe x:xmpmeta wrapper element's namespace, adobe:ns:meta/ (ISO 16684-1 §7.3.3).