Are you trying to transfer your file in one format to another using acrobat, but while you choose the tool, then you get the error in the file such as Acrobat failed to connect to a DDE server. It is shown to then when your apparatus is busy or hang position mode, So if you are not able to use this thing in a more reliable way to this in the right manner. Then you can take help digiknowlogy for better assistance and much more.