Currently, image resize is done in server side by flynax script. Please change it to client side using javascript.
We are losing our bandwidth and storage very fast.
The script uploads Original image file, then resize it to two image files; a large one and a small thumbnail. All done in server!
It is better to resize original image at client side and upload only resized and thumbnail ones.
I don't understand, why you use server side method; because it is an advertising script with many daily images uploading.