driver.setLogger(new ConsoleLogger(ConsoleLogger.LEVEL_INFO));
driver.setRenderer(renderer);
try {
// build FO tree: time
frame.progress(translator.getString("Build FO tree") + " ...");
//Load XSL-FO file (you can also do an XSL transformation here)
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
Source src = new StreamSource(fo);