* For the SVG target, renderers obtain Batik's <a href="http://xmlgraphics.apache.org/batik/using/dom-api.html">Document</a> instance.
* As the PDF target rely on the iText library renderers obtain the <a href="http://api.itextpdf.com/itext/index.html?com/itextpdf/text/pdf/PdfContentByte.html">PdfContentByte</a>
* There are three types of targets: <b>Processing</b>, <b>PDF</b> or
* <b>SVG</b>. When the target is G2D, renderers obtain the {@link Graphics2D}
* object. For the SVG target, renderers obtain Batik's <a