That's a common question pdf users've come across.
PDF(Portable Document Format) was originally developed by Adobe, therefore Adobe definately has the most professional converter to help you do what you need, with a pretty expensive price of course.I don't think there's any other way to convert pdf format to word or ppt without a software, unless you are a programmer.
Here're some information that might help you to solve your problem:
[url=http://www.mac-iphone-ipad.com/how-to-convert-pdf-to-word-ppt-text-epub-image-html-html/]How to convert PDF to Word/PPT/Text/Epub/image/HTML[/url]
[url=http://www.mac-iphone-ipad.com/how-to-convert-pdf-to-word-ppt-text-epub-imagehtml-on-mac/]How to convert PDF to Word/PPT/Text/Epub/image/HTML on Mac[/url]
