Namespace prefix mappings for the RDF properties produced by Apache Tika, for use as a JSON-LD context

tika-context.json

{
	"dc": "http://purl.org/dc/elements/1.1/",
	"dcterms": "http://purl.org/dc/terms/",
	"Iptc4xmpCore": "http://iptc.org/std/Iptc4xmpCore/1.0/xmlns/",
	"Iptc4xmpExt": "http://iptc.org/std/Iptc4xmpExt/2008-02-29/",
	"plus": "http://ns.useplus.org/ldf/xmp/1.0/",
	"cp": "http://schemas.openxmlformats.org/package/2006/metadata/core-properties/",
	"extended-properties": "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties/",
	"photoshop": "http://ns.adobe.com/photoshop/1.0/",
	"xmp": "http://ns.adobe.com/xap/1.0/",
	"xmpidq": "http://ns.adobe.com/xmp/identifier/qual/1.0/",
	"xmpMM": "http://ns.adobe.com/xap/1.0/mm/",
	"xmpRights": "http://ns.adobe.com/xap/1.0/rights/",
	"xmpTPg": "http://ns.adobe.com/xap/1.0/t/pg/",
	"xmpG": "http://ns.adobe.com/xap/1.0/g/",
	"stDim": "http://ns.adobe.com/xap/1.0/sType/Dimensions#",
	"stFnt": "http://ns.adobe.com/xap/1.0/sType/Font#",
	"xmpGImg": "http://ns.adobe.com/xap/1.0/g/img/",
	"stEvt": "http://ns.adobe.com/xap/1.0/sType/ResourceEvent#",
	"stRef": "http://ns.adobe.com/xap/1.0/sType/ResourceRef#",
	"stVer": "http://ns.adobe.com/xap/1.0/sType/Version#",
	"stJob": "http://ns.adobe.com/xap/1.0/sType/Job#",
	"xmpDM": "http://ns.adobe.com/xmp/1.0/DynamicMedia/",
	"pdf": "http://ns.adobe.com/pdf/1.3/",
	"crs": "http://ns.adobe.com/camera-raw-settings/1.0/",
	"exifEX": "http://cipa.jp/exif/1.0/",
	"exif": "http://ns.adobe.com/exif/1.0/",
	"tiff": "http://ns.adobe.com/tiff/1.0/",
	"odf": "http://docs.oasis-open.org/ns/office/1.2/meta/odf#",
	"meta": "urn:oasis:names:tc:opendocument:xmlns:meta:1.0#"
}

Most properties are listed at https://tika.apache.org/1.2/api/constant-values.html. However Tika will produce values for properties with namespaces not listed here (e.g. xmpTPg:NPages for the number pages in a PDF); these additional properties are included from the Adobe XMP Specification parts 1 and 2. Section 3.4 of Part 2 indicates that PDFs can also include properties from the Exif and TIFF namespaces, but the links to both the Exif spec and the mappings mentioned are broken. I think that this PDF contains the same information and have included the three namespaces (exifEX, exif, and tiff) that it describes.

Furthermore, in section 1.2.2.3 of Part 2, the URI for stFnt is erroneously listed as http:ns.adobe.com/xap/1.0/sType/Font# (a particularly insidious typo since http:ns.adobe... is a valid URI). I've corrected it to http://ns.adobe.com/xap/1.0/sType/Font#, consistent with every other Adobe namespace.