Techniques for generating and using digital markups on digital images are presented. In an embodiment, a method comprises receiving, at an electronic device, a digital layout image that represents a form of a product for manufacturing a reference product; generating a digital markup layout by overlaying the digital markup image over the digital layout image; based on the digital markup layout, generating one or more manufacturing files comprising digital data for manufacturing the reference product; receiving a digital reference image of the reference product manufactured based on the one or more manufacturing files; identifying one or more found markup regions in the digital reference image; based on the found markup regions, generating a geometry map and an interactive asset image; based on, at least in part, the geometry map, generating a customized product image by applying a user pattern to the interactive asset image.