public function printPDF()
    {
       // This  $data array will be passed to our PDF blade
       $data = [
          'title' => 'First PDF for Medium',
          'heading' => 'Hello from 99Points.info',
          'content' => 'Lorem Ipsum is simply dummy text of the printing and typesetting industry.'
            ];

        $pdf = PDF::loadView('pdf_view', $data);
        return $pdf->download('medium.pdf');
    }