Get size of image

In order to send a file to godaddy with POST, I need to include the Content-Length header, so I need to find the size of the file that it is sending (using a picture). Is it possible to get the properties of a picture and find its size in it?



unfortunately not possible

but there are other web hoster which are not as restrictive, see also https://puravidaapps.com/postfile.php