Edit custom product form after purchase

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Hello,

I think I know the answer to this one but I am going to try anyway. I have added the custom form to all of my products (with various text boxes, drop downs, radio etc..). Is it possible for a to customer to change this information after the product is bought and re-send the form?

Alternatively, do anyone know of a third-party that offer this solution? Where the customer for example can log into a page, the form prompts with all the information he entered when the customer bought the product , so the customer are able to just edit what they want to edit, or update.

Thanks in advance