If you want your customers to be able to remove background from their custom image without using image redactor like Photoshop, you can set the option of auto background removal with API. Here is a short guide on how to do it:
1. In the list of custom products press button «General Settings». Scroll down and to the block RemoveBG Apu Key.
2. There you can find a link. Use it.
3. Create a profile to get 50 free background removals.
4. Once you made own profile get back to the link: https://www.remove.bg/api and press «Get API Key».
5. Press show button, copy the following code and paste it in the field in custom product builder. Press Save.
6. Now If you have file upload category and layer «Display Artwork» set to «show image from category», the customer will see the checkbox to remove the background URL store.