Java tutorial
import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfWriter; public class FillCirclesPDF { public static void main(String[] args) { Document document = new Document(); try { PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("FillCirclesPDF.pdf")); document.open(); PdfContentByte cb = writer.getDirectContent(); cb.setRGBColorFill(0xFF, 0x00, 0x00); cb.circle(250.0f, 500.0f, 200.0f); cb.circle(250.0f, 500.0f, 150.0f); cb.circle(350.0f, 300.0f, 150.0f); cb.fillStroke(); } catch (Exception e) { System.err.println(e.getMessage()); } document.close(); } }