This software is useless on an iPad for viewing presentations.
Most graphics and pictures do not show up, fonts are randomly changed and layout becomes random. I tried saving to pptx and ppt and no improvement.
Deleted the software after 15 minutes.
Im surprised Apple certified pptView and suggest Apple do a basic check of apps to see if they even remotely do what they claim.
Try SlideShark for viewing ppt. It works great and is free.
David175345793 about pptView - viewer for Powerpoint (ppt,pptx,pps,ppsx), OpenOffice (odp) and PDF presentations