Convert PDF to ppt with Free Tools

If you google “free pdf to ppt converter“, “pdf to powerpoint” , you will find many share/commercial software, of course, you can also find my free software PDF2PPT, but it still need Adobe Acrobat, but if you have no Adobe Acrobat, how to do?
Now, you have another choice, Acrobat Free version PDFtoPPT, and it is a windows command line version, of course it is also free.