WordPress e-commerce upload a picture when buying

Hi everybody,

I am currently working on a website for a printing business. They want an online store so I have decided to use wordpress e commerce for the store and they ask me if it’s possible when the client come on the site buy a product to have i’m send a file ?

Do you guys have an idea on how could I do this ? Is there a plugin that can do that or something else ?

Thanks for your help !