How to download files in Laravel using Response::download?

Try this function:

public function getDownload()
{
  //PDF file is stored under project/public/download/info.pdf
  $file = public_path(). "/download/info.pdf";

  $headers = [
    'Content-Type: application/pdf',
  ];

  return Response::download($file, 'filename.pdf', $headers);
}

Or another method:

$headers = [
  'Content-Type' => 'application/pdf',
];

return response()->download($file, 'filename.pdf', $headers);