Created with PHP and Ajax.With additional XML and PDF export.
Note:
Only tested locally.
If you want to delete tmp files you need to give www-data delete permission
and uncomment the following line in DB.php
//unlink($f);//www-data needs delete permission !
also you can uncomment the following line in the same file for extra security:
//chmod($file, 0600);
Feel free to play with this mini project.