For optimum throughput and performance of your Adobe PDF Print Engine and workflow, keep your Sierra system
Xitron is currently shipping Sierra version 7.1 with APPE version 4.6. If your system is 6.X or older, ask for an upgrade quote here.
For customers with a Xitron support agreement in place, upgrades are free. You can request an upgrade through firstname.lastname@example.org. Be sure to include your dongle number in the request.