You can create EPS files directly from Adobe Acrobat by using an appropriate Printer Driver e.g. CutePDF or one downloaded from Adobe’s website. For example: http://www.adobe.com/support/downloads/detail.jsp?ftpID=1500 and follow the instructions at: http://www.ep.ph.bham.ac.uk/general/printing/winsetup.html
Note: you will need the Generic Colour Postscript PPD file linked in the document if you want to print A3 or larger. You can download the PDD file from the above website.
Load the PDF into Acrobat and then go to File ->Print. Select CutePDF Writer (or another Postscript printer you have installed). Click on Properties and then the Advanced… button.
There is a section called Postscript Options; expand this to find the PostScript Output Option and change this from ‘Optimize for Speed’ to ‘Encapsulated Postscript (EPS)’.
When you print you will now be asked to save a file which you should add the extension .eps to your file. You should be able to open this file in Ghostview as a vector EPS.