Since the new ISO PDF Standard 19593-1 have been issued, it use layer to organize the processing step,like diecut,foil, vanish,which is great for the print and buyer. But most prepress use the indesign to do the DTP job,but indesign don't support the sublayer.I found the DTP Tools have a plungin support the sublayer(see website below), you can see the sublayer in the indesign,but when export indesign to PDF,pdf have only layer other than sublayer.Do anyone give us some advice about the indesign sublayer?
http://dtptools.com/product.asp?id=dcid
http://dtptools.com/product.asp?id=dcid