The art box for the document or for a given page. This key is optional. If present, the value of this key must be a CFData object that contains a CGRect (stored by value, not by reference).
Available in Mac OS X v10.4 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)