How can I convert my pdf files to Microsoft Word format?

Can anyone advise me on how to import or convert equations given in pdf documents to a form that can be placed in MSWord 2003 documents and then edited with the standard Equation Editor3.0 ? Is this possible with standard software ? or do you need a plug in ? if so which one ?

http://www.pdfonline.com/pdf2word/index.asp

If your destination is Word 2003, why don't you convert it to Word directly?
Then edit it with any other editor you like!
here I will share you one which does a good job!

http://www.pdftoword.biz/