Yes, you can use the CE.SDK to print images on different products with custom templates. The Apparel UI use-case in our showcase demonstrates how a custom user experience can be built based on our CreativeEngine to customize printables.
However, please note that it is currently not possible to constrain moving blocks outside of the page boundaries in CE.SDK. Nonetheless, it is possible to verify the design and warn the user if this happens using our API. Our design validation showcase demonstrates this behavior in action.