go to : http://www.foolabs.com/xpdf/download.html
download this zip (32 &64 bits-10.76Mo) :ftp://ftp.foolabs.com/pub/xpdf/xpdfbin-win-3.04.zip
Xpdf is an open source viewer for Portable Document Format (PDF) files

it have convertors capable to run some interesting librarires
-pdfImages : extracts images from a PDF file
-pdftoText: convert a pdf as txt file
-pdftoHtml: convert each pdf page as html with a global index
-pdftoPNG reads the PDF file and writes one PNG file for each page
-pdftoPPM converts a PDF file to a series of PPM/PGM/PBM-format bitmaps
-pdftoPS reads the PDF file and writes a PostScript file, PS file.this can be sent to printer.

can read my post :http://yousfi.over-blog.com/2016/02/working-with-open-source-xpdf-library.html

*note:(correct please a small typo:[messagebox(m.yimg,0+32+4096,'',1200')---messagebox(m.yimg,0+32+4096,'',1200)]
(cannot modify the post ,provider have changed somethings in editors!)

-can also use another tool named: pdf shaper.see the attached photo.can find a pdf to word converter here.
can download (personal use ) it from: http://www.pdfshaper.com/download.html