public function output()
{
$defaults = ['fontCache' => TMP, 'tempDir' => TMP];
$options = (array) $this->config('options') + $defaults;
$DomPDF = $this->_createInstance($options);
$DomPDF->setPaper($this->_Pdf->pageSize(), $this->_Pdf->orientation());
$DomPDF = $this->_render($this->_Pdf, $DomPDF);
return $this->_output($DomPDF);
}