hi, we have a website which sells customised canvases where people can upload a photo, choose a canvas size and purchase it, so far i have managed to integrate picnik(image uploader) into our website, so a user can upload into picnik, click Done, which then returns the edited image back to our site and displays it with the order form, at this point we would the user to do some additional cropping for example when a user chooses a canvas size 200x200mm this would display the image on a 200x200 canvas box and then the user can click crop to delete bits of the image, can anyone help me to achieve this or point me to the relevant resources, this is the link with picnik integrated www.yourwallart.co.uk/photocanvas2.php thankyou