Table 317 – Entries in the document information dictionary

Key

Type

Value

Title

text string

(Optional; PDF 1.1) The document’s title.

Author

text string

(Optional) The name of the person who created the document.

Subject

text string

(Optional; PDF 1.1) The subject of the document.

Keywords

text string

(Optional; PDF 1.1) Keywords associated with the document.

Creator

text string

(Optional) If the document was converted to PDF from another format, the name of the conforming product that created the original document from which it was converted.

Producer

text string

(Optional) If the document was converted to PDF from another format, the name of the conforming product that converted it to PDF.

CreationDate

date

(Optional) The date and time the document was created, in human-readable form (see 7.9.4, “Dates” ).

ModDate

date

(Required if PieceInfo is present in the document catalogue; otherwise optional; PDF 1.1) The date and time the document was most recently modified, in human-readable form (see 7.9.4, “Dates” ).

Trapped

name

(Optional; PDF 1.3) A name object indicating whether the document has been modified to include trapping information (see 14.11.6, “Trapping Support” ):

TrueThe document has been fully trapped; no further trapping shall be needed. This shall be the name True, not the boolean value true.

FalseThe document has not yet been trapped. This shall be the name False, not the boolean value false.

UnknownEither 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.

Default value: Unknown.

NOTE 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.