Until now, I did not notice this feature in the latest Adobe Acrobat XI: converting PDF files to PowerPoint. I tried it on a PDF file that had the look and feel of a typical PowerPoint presentation (boxes with big text) and the results were surprisingly good. Here and there, a slide needed a small manual correction (semitransparents, etc.), but hey, it worked. As expected, data charts do not come out in vanilla Excel format.
Now, I guess that if you want to convert a file that does not have a typical PowerPoint look and feel, your results will be less good, but that is not the point, is it?
How would you use it? I think very few would use the tool to be able to present a PDF file in a PowerPoint environment. The CMD-L option in Acrobat gives a beautiful full screen view of your PDF slides. But the tool could be handy to strip out images quickly from a PDF file.
Adobe Acrobat XI is a premium product, the free Adobe Acrobat Reader will not pull off this trick.