Right now there is a lot of information out there how to export a reveal presentation as PDF but much less not how to include a PDF document. The most natural way would be some embed
<section><object data="test.pdf" style="width:100%"><a href="test.pdf">PDF laden</a></object><section>
looks strange, not full frame, no handlers
<section data-background-iframe="test.pdf" data-background-interactive></section>
works but cannot jump to a certain page and cannot style the background.