Created attachment 28725 [details]
source ppt file

Line has non-standart "end type" (schematic example: ----o) (can switch in Microsoft PowerPoint 2010: "Format Shape -> "Line style" -> "End type"). But, in the result image, this "end type" is drawing wrong.

public class Main {

    public static void main(String[] args) {
        String input[] = {"D:\\Test.ppt"};
        try {
            PPT2PNG.main(input);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}