Close and re-open pdf output during print production

[phoustoun]

I have used Bullzip PDF com API for several of our Navision (MS Dynamics NAV) clients, in different versions of NAV, to produce output to pdf rather than print, and particularly to control whether the print goes to pdf or the printer, and, if to pdf, to control its name and location from within the print program.
I now have the requirement to produce, in a single report run, multiple pdfs -- say, one for each vendor or customer. I would need, therefore, when finished printing data for one customer, to be able to close the then-open pdf, assign a new pdf name based on the next customer, and restart the pdf production, now producing a different pdf file. Is there some way to do this?
Thanks. By the way, I am in a huge hurry to decide if this can be done...