For printer drivers, you will need to download the update from the manufacturer’s website and install it manually. Once all of this is done, you can connect the printer to your Mac.

How to Install a PostScript Printer Driver. PostScript is a device-independent printing language widely supported by printer manufacturers and primarily used for printing graphics-intensive jobs.

The Adobe Acrobat 9 printer is added to a Mac computer by installing Adobe Acrobat 9 on the machine.