- build-xmp-packet #!key TITLE AUTHOR SUBJECT KEYWORDS PRODUCER CREATOR-TOOL CREATE-DATE PDFA-PART PDFA-CONFORMANCEprocedure
Returns an XMP metadata packet as a string. Fields given as #f or "" are left out. When PDFA-PART and PDFA-CONFORMANCE are both given (for PDF/A-1b, "1" and "B"), the packet includes the PDF/A identification fields, which claim conformance.