Jobs, multiple virtual devices

Good evening!

Is it possible to implement it ?

There are several virtual printers PDFCreator (PDF1, PDF2, PDFn)
I need to send files for conversion to the necessary virtual printers.
Saw an example of one device, and how to deal with multiple virtual printers ?

PS. Each instance of the program (.exe) is working with its virtual
printer. How to apply to the device you need to monitor print jobs?