Hi at moment whenever I upload an image it uploads all the different thumbnails sizes I've created, as I have four pages each needs a different image size, so I've created four different thumbnail on the function.php, but the problem is whenever I upload one image all four sizes are upload aswell, is it possible to set so that if user tick large image upload large image only no duplicate image, if small upload one small too no duplication?
You may be able to put the add_image_size() function in a conditional section, dependent on the box ticked on the form. Other than that I'm not sure this is possible.
yeah that sounds like the case but i dont even know if its possible i've look around cant find any starting point to achieve that, any idea how?