I use <security name="AutoResizeUploadedImages">true</security> to resize the images that users upload and the visible size of the image is made smaller but the size on disk grows tremendously. If the orginal image is 12 kb the image that ends up on my site is way over 70 kb. What can I do about that?

I encounter the same situation as in http://cutesoft.net/forums/1431/ShowPost.aspx but the fix offered does not work. I cannot find it in the js file.

Can you please fix the problem that if an image is uploaded that is 12 kb becomes 70 kb when it is resized? This is a huge problem for me.