It is worth mentioning that that one more version of the spec can be found
in an ISO Working Draft of PRC format at
http://pdf.editme.com/files/PDFE/SC2N570-PRC-WD.pdf
It seems to be more complete than the html docs in Acrobat SDK, really welcome are some additional explanations of what
the parameters really are for, where SDK version has just their names and types.
North America
Europe, Middle East and Africa
Asia Pacific