No one else has commented, wondering if you found a solution?

With SWF output it was possible to create an interactive pdf, but that is not what you mean at all. There has never been a publish to static pdf, to a digital print in Captivate.  I don’t really see how that could improve the learning efficiency. You can add Closed Captions, subtitles, which will be synchronized with your slides. To me a much better solution.

You can always include a pdf in the callees folder, and put a link to it in your Captivate course if it is important, but that would mean that you need to create the pdf manually.