I'm trying to create a form where the user can change the background image. Ideally, they'd be able to insert an image with a transparent background on top of another background, but I'm not sure that's possible. If not ... can they just insert a background behind other objects and form elements? I tried adding an image field under other elements, but when I save it and open it in Adobe Reader and insert an image, it's not behind the others.
Thanks for any advice.
