I have a PowerPoint presentation created on Microsoft Windows. When I play it on an iPad there are great typography distortions. There are a lot of fonts not found on the by iPad. Could I install my own fonts on an iPad, or solve this in another way?
In order to obtain similar results in typography on a Windows PC running PowerPoint and on an iPad, perhaps you should construct your PowerPoint presentation with fonts that are already available on the iPad.
Apple's list of fonts in iOS 5 is here.
If you want things to look the same on different platforms, it is always a good idea to restrict your presentations to the basic fonts Arial, Courier, Georgia, Times New Roman and Verdana.