Though we have talked about PDF to other format conversion but Converpdftoword is
the best tool I have seen till now which not only converts from PDF to
Word but does it very well in terms of quality.  Here is an
example ( I have part of the files so the image retains the quality
which word file has )

Sample PDF document to be converted into WORD

Sample PDF document which I will convert into word

Converted PDF document into MS office Word

Converted PDf document into Word