Oh I see, that is a software converter! So I cannot do it any other way? I cannot save the PDF as a different file that is compatible with Indesign so that I can just open it up in Indesign and save it?
No you can´t.
There´s couple of thing you can try, but I´m afraif none of them are quite perfect...
1) Open you PDF into Illustrator and copy/paste or drag&drop the content of the page into InDesign from there. Cons are; you can do only one page at the time and your text will be converted to outlines during the process
2) Save your PDF as RTF or Word document from Acrobat Professional and place resulting file to InDesign with File>Place commans. You probably have to redo most of the layout, but with correct settings you may be able to preserve text as editable mode and have some styles and graphic elements still after placing....
Steve´s suggestion is only deasent way to do that.
And, of course, if you don't need to EDIT the things in the PDF file, you can just place it on the page, and it will be identical in Indesign to the way it is in Acrobat. You can add material to it, and add more pages, but you can't change it.