The document's metadata stream: a live view over the catalog's Metadata entry and the XMP packet it holds.
public sealed class PdfMetadata
ISO 32000-2 §14.3.2, Tables 347 and 348: a stream with Type Metadata and Subtype XML holding XMP
(ISO 16684-1); in PDF 2.0 the preferred place for document metadata. A stream without the right Type or Subtype is
still read, with a MetadataStreamTypeInvalid diagnostic.
Packet is parsed on first use and kept: an immutable snapshot of the stream. When the stream is changed (its data
replaced or its dictionary edited), the next read parses it again. A packet that cannot be read is null with an
XmpMalformed or XmpDtdProhibited diagnostic; the Info dictionary stays readable.
kind:method, kind:property, kind:ctor. Press Esc to clear.