Convert html to pdf using iText and Flying Saucer.

htmltoPDF

   String inputFile = "~/github/iText/myhtml.xhtml";
	        String url = new File(inputFile).toURI().toURL().toString();
	        String outputFile = "~/github/iText/generated.pdf";
	        OutputStream os = new FileOutputStream(outputFile);

	        ITextRenderer renderer = new ITextRenderer();
	        renderer.setDocument(url);
	        renderer.layout();
	         renderer.createPDF(os);


	        os.close();