I've been working with a great plugin for the last few days which help reduce the size of my images and thus help speed up my site - fantastic. It is http://wordpress.org/extend/plugins/imsanity/
Now, it automatically resizes images for ones uploaded to posts and pages, or directly to the media library, but not for images uploaded from the frontend via a gravity form. I have to manually resize these using the bulk resize image function with the Imsanity plugin.
I raised this with the plugin developer, and he mentioned the wp_handle_upload function which would enable both Gravity Forms and Imsanity to talk to each other. Is this possible?