I actually prefer slides in PDF form rather than .ppt/.pptx, as long as all the immediate transitions are omitted in the .pdf file. OpenOffice and LibreOffice h

I actually prefer slides in PDF form rather than .ppt/.pptx, as long as all the immediate transitions are omitted in the .pdf file. OpenOffice and LibreOffice have trouble rendering some .pptx files, and it's just less convenient than firing up a PDF reader