A digital Mockup is an excellent tool for confirming graphic layout and overall structure but can never replace a physical Proof. This is because a physical Proof reveals subtle differences in color, how the board creases under pressure, and the actual ink absorption by the material, which cannot be accurately simulated in digital models.

The best packaging 3D visualization tools are specialized software like IC3D and ESKO DeskPack. These applications are designed based on printing industry and die-making (Dieline) rules, offering the closest possible result to reality due to their adherence to production standards. Using generic Photoshop mockups is not recommended for final production approval.