Member name	Value	Description
Title	0	The document’s title.
Author	1	The name of the person who created the document.
Subject	2	The subject of the document.
Keywords	3	Keywords associated with the document.
Creator	4	If the document was converted to PDF from another format, the name of the application that created the original document from which it was converted.
Producer	5	If the document was converted to PDF from another format, the name of the application that converted it to PDF.
CreationDate	6	The date and time the document was created, in human-readable form.
ModDate	7	The date and time the document was most recently modified, in human-readable form.
Trapped	8	A named object indicating whether the document has been modified to include trapping information True: The document has been fully trapped; no further trapping is needed. (This is the name True, not the boolean value true.) False: The document has not yet been trapped; any desired trapping must still be done. (This is the name False, not the boolean value false.) Unknown: Either it is unknown whether the document has been trapped or it has been partly but not yet fully trapped; some additional trapping may still be needed. This is the default. The value of this entry may be set automatically by the software creating the document’s trapping information, or it may be known only to a human operator and entered manually.