Printing a Power/point slide 11x17 in Mojave

Hi friendly helpful apple community!

I am trying to print a single slide on 11x17 paper and it seems to be quite the uphill task. So far I have:

-downloaded a new driver (this at least gave me the ability to toggle paper sizes in the print popup in powerpoint)

-uninstalled and reinstalled the printer

-saved the slide as an image

-saved the slide as a pdf

-resized the slide to 11x17

Nothing has yielded an 11x17 landscape print of this slide.

thanks for your help in advance!