A PDF for projecting is not a PDF for printing, and neither is what a speaker needs on stage. Choose a layout and every page of the result is laid out below, from a 10-slide sample deck.
PDF pages are still. A slide whose points appear on click can become one finished page, or one page per click, so that pressing “next” in a PDF viewer still reveals them in order. Presenters usually want the second; readers the first.
A .pptx only names its fonts. If the person opening it doesn't have your brand font, PowerPoint swaps in another: lines rewrap and text spills out of boxes. A PDF embeds the letters it uses, so the page looks the same everywhere.
Here's exactly what each one becomes on the page, and how to point readers to the original.
The usual next steps once a deck is a PDF.