I need an expert in Opencart and PHP programming. There is an upload feature in the opencart 1.5 where a customer could upload images to their cart. Once a customer upload an image, it get resized to a thumbnail size and shows the preview image next to the upload button. the image resize converter will be ImageMagick
Those uploaded images will be a thumbnails in their cart checkout and confirmation email.
This is a simple project and good luck on your bid.
If you have any questions, please email me. Thanks
Forgot to mention, on the thumbnail preview, it will have a square frame around the image like the attached image. In ImageMagick, you could overlay the attached image on the customer's image so it will show a frame around the image for guideline.