code: public void addImage(Image image, float a, float b, float c, float d, float e, float f) throws DocumentException {
          addImage(image, a, b, c, d, e, f, false);
      }
docs: Adds an <CODE>Image</CODE> to the page. The positioning of the <CODE>Image</CODE>
  is done with the transformation matrix. To position an <CODE>image</CODE> at (x,y)
  use addImage(image, image_width, 0, 0, image_height, x, y).
  @param image the <CODE>Image</CODE> object
  @param a an element of the transformation matrix
  @param b an element of the transformation matrix
  @param c an element of the transformation matrix
  @param d an element of the transformation matrix
  @param e an element of the transformation matrix
  @param f an element of the transformation matrix
  @throws DocumentException on error