gistfile1.java

     private boolean isEmptyImage(PDXObjectImage image) throws IOException {
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          image.write2OutputStream(baos);
          baos.flush();
          int size = baos.toByteArray().length;
          baos.close();
          if (size < 1) {
               String msg = "ignore empty image";
               System.out.println(msg);
               log.info(msg);
               return true;
          }
          return false;
     }