try {
String fileName = files[ i ].toURL().toString();
System.out.println("Reading: " + fileName );
Document svgDoc = loader.loadDocument( fileName );
System.out.println("Building: " + fileName );
gvtRoot = builder.build(ctx, svgDoc);
System.out.println("Rendering: " + fileName );
renderer.setTree(gvtRoot);
Element elt = ((SVGDocument)svgDoc).getRootElement();
renderer.setTransform