Hi macray - sorry no there is currently not any way to change the PDF export page configuration. It's just fixed at a 8.5 x 11 portrait sheet. Since it was a new feature kind of late in the v3 timeframe the focus for it was just on the content generation and not on other less critical details like the page configuration. I considered that to be a lower priority than the actual content since you can import the PDF file into a 2D vector drawing app like Adobe Illustrator, etc... to put it on whatever kind of page you need.

I do expect to add some control for it at some point here though.

- Michael