public static function run($dataDir = null)
 {
     # Instantiate barcode object
     $symbology = new Symbology();
     $builder = new BarCodeBuilder("1234567890", $symbology->Code39Standard);
     # Set auto size false
     $builder->setAutoSize(false);
     # Set height
     $builder->setImageHeight(50);
     # Set width
     $builder->setImageWidth(120);
     $builder->save($dataDir . "GenerateBarcodeByCustomImageSize.jpg");
     # Display Status.
     print "Generate Barcode By Custom Image Size, please check the output file." . PHP_EOL;
 }