Johnny,
which version of MicroStation and Adobe Acrobat do you use?
As Bear already suggested in MicroStation V8 the original Bentley pdf.plt or pdf.pltcfg will give you complete control and best results.
To control print output…
Elar,
Kevins advice is about how to setup a system printer for a specific default sheet size in the system printer configuration file (printer.plt), not how to switch between different printers.
I don´t know about a method to automatically…