/**
     * convert to pdf using document4j
     * RTL languages are supported
     */
    public static void convertUsingDocument4j(){
        File inputWord = new File("E:/1.docx");
        File outputFile = new File("E:/Test_out.pdf");
        try  {
            InputStream docxInputStream = new FileInputStream(inputWord);
            OutputStream outputStream = new FileOutputStream(outputFile);
            IConverter converter = LocalConverter.builder().build();
            converter.convert(docxInputStream).as(DocumentType.DOCX).to(outputStream).as(DocumentType.PDF).execute();
            outputStream.close();
            System.out.println("success");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }