Bkash Merchant QR Code on WHMCS invoice

At the line number 104 of invoicepdf.tpl

 # QR Payment Code

$qrFilename = 'QR_INVOICE.png';

if (file_exists(ROOTDIR . '/assets/img/QR_INVOICE.png')) {

    $qrFilename = 'QR_INVOICE.png';

} elseif (file_exists(ROOTDIR . '/assets/img/logo.jpg')) {

    $qrFilename = 'logo.jpg';

}

$pdf->Image(ROOTDIR . '/assets/img/' . $qrFilename, 120, 110, 75);

$pdf->Ln(10);