MPDF + ZF1

<?php
class Application_Model_MPDF {

	public function createPDF($HTML, $filename) {
		define('_MPDF_PATH', APPLICATION_PATH.'/../library/MPDF/');
		include(_MPDF_PATH.'mpdf.php');
		$mpdf = new mPDF('utf-8', 'A4');
		$mpdf->SetWatermarkImage('../public/images/logo.png');
		$mpdf->showWatermarkImage = true;
		$mpdf->WriteHTML($HTML);
		$mpdf->Output("$filename.pdf",'D');
    exit();
	}

}