Export Keynote presentation as PDF

I've had lots of problems doing this well, but I found a workaround that I'd like to share.

I export the presentation from Keynote to Power Point (you don't need to pay for it). Then I send myself a copy using email, choosing PDF format. Then I download the attached file from the email. Works perfectly, as far as I can tell.

Power Point can obviously faithfully convert a file to PDF, but Keynote can't. Pretty bizarre, unless I'm missing something.....