Make multiple image edits, creative SDK

I want my customers to be able to edit an image from my server and save it.

If they make a mistake to be able to edit that text or change and to do it multiple times.

Also if there is an image that maybe had 20% discount written on it then for the cusstomer to be able to edit the image to say 15% for example.

Is this possible with the creative SDK / Aviary?

Thanks