OptionaltitleThe document's title.
OptionalauthorThe name of the person who created the document.
OptionalsubjectThe subject of the document.
OptionalkeywordsKeywords associated with the document. Multiple keywords are typically separated by commas or semicolons.
OptionalcreatorThe name of the application that created the original document (if the document was converted from another format).
OptionalproducerThe name of the application that produced the PDF document.
OptionalcreationThe date and time when the document was created.
OptionalmodificationThe date and time when the document was most recently modified.
Interface representing metadata information of a PDF document. Contains standard PDF document properties according to PDF specification.