I my PHP application following code is for downloading file attachment. File content and info are stored in MySQL database as blob data.
header('Content-Disposition: attachment; filename="' . $attachment['name']. '"');
header('Content-Type: ' . $attachment['type']);
header('Content-Length: ' .$attachment['size']);
header('Pragma: no-cache');
header('Expires: 0');
print $attachment['content'];
exit;
Download works as expected but pdf files with version 1.4 shows blank content. In case of pdf version 1.3 it works.
How can I fix this?