public function output()
{
//TCPDF often produces a whole bunch of errors, although there is a pdf created when debug = 0
//Configure::write('debug', 0);
$TCPDF = new \TCPDF($this->_Pdf->orientation(), 'mm', $this->_Pdf->pageSize());
$TCPDF->AddPage();
$TCPDF->writeHTML($this->_Pdf->html());
return $TCPDF->Output('', 'S');
}