private static void printPdf(File filename) throws PrintException, IOException{
 
    PrintService ps = PrintServiceLookup.lookupDefaultPrintService();
    System.out.println(ps.getName());
    PrintService myService = ps;
    FileInputStream fis = new FileInputStream("C:\\PrintLabel\\File.pdf");
    Doc pdfDoc = new SimpleDoc(fis, DocFlavor.INPUT_STREAM.AUTOSENSE, null);
    DocPrintJob printJob = myService.createPrintJob();
    printJob.print(pdfDoc, new HashPrintRequestAttributeSet());
    System.out.println("print is called");
    fis.close();
 
}