/**
* Draws the barcode.
*
* @param resource $im
*/
public function draw($im)
{
// The following code is exactly the same as EAN13. We just add a 0 in front of the code !
$this->text = '0' . $this->text;
// We will remove it at the end... don't worry
parent::draw($im);
// We remove the 0 in front, as we said :)
$this->text = substr($this->text, 1);
}
