output of contact form 7 to pdf form

Thanks for this plugin , But my client wants to convert contact form 7 output to PDF and email to the same person. I have used the code below but after submitting the form ajax loader just loading.

add_action( 'wpcf7_before_send_mail', 'save_application_form');
function save_application_form($cf7) {

/* GET EXTERNAL CLASSES */
require(TEMPLATEPATH.'/includes/fpdf.php');

$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Write(5,"Hello, World!\n\n\n");
$pdf->Output(TEMPLATEPATH.'/file/pdf.pdf', 'F');

$cf7->uploaded_files = array (TEMPLATEPATH.'/file/pdf.pdf' );

}

Please help me out asap