I'm using TCPDF to print a receipt and then send it to customer with phpMailer, but I have a problem:
I have no idea how to save the file into a pdf.
I've tried this:
// reset pointer to the last page
$pdf->lastPage();
//Close and output PDF document
$pdf->Output('kuitti'.$ordernumber.'.pdf', 'I');
$this->Output("kuitit");
try this
$pdf->Output('kuitti'.$ordernumber.'.pdf', 'F');