public void Ellipse(PdfContentByte content, Rectangle rect) {
content.SaveState();
content.SetRGBColorFill(0x00, 0x00, 0xFF);
content.Ellipse(
rect.Left - 3f, rect.Bottom - 5f,
rect.Right + 3f, rect.Top + 3f
);
content.Fill();
content.RestoreState();
}