import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.PageSize;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.PdfWriter;
public class CoordinateUpsideDownPDF {
public static void main(String[] args) {
Document document = new Document(PageSize.A4);
try {
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("CoordinateUpsideDownPDF.pdf"));
document.open();
PdfContentByte cb = writer.getDirectContent();
cb.concatCTM(1f, 0f, 0f, -1f, 0f, PageSize.A4.height());
cb.moveTo(216, 720);
cb.lineTo(360, 360);
cb.lineTo(360, 504);
cb.lineTo(72, 144);
cb.lineTo(144, 288);
cb.stroke();
} catch (Exception e) {
System.err.println(e.getMessage());
}
document.close();
}
}
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