there is a Vector grahic pdf file and i want to get the Vector data(Path,polygon,polyline),such as position,color,linewidth to show on my own canvascontrol . but i didnt find the api to get it . could u help me?...is a vector grahic pdf file and i want to get the vector data(path...data(path,polygon,polyline),such as position,color,linewidth to show...