PDF extraction fix; ScienceMag issues (closes bug #289)
PDF extraction fix; ScienceMag issues (closes bug #289)

pombredanne/paperpile,jondo/paperpile,pombredanne/paperpile,pombredanne/paperpile,pombredanne/paperpile,jondo/paperpile,jondo/paperpile,jondo/paperpile,pombredanne/paperpile,jondo/paperpile