April 24, 2026 · 6 min read
Packaging artwork fails in a very specific way when it's designed without a die line: it looks perfect flat, and wrong the moment it's folded.
A die line is the technical drawing of a package's cut and fold pattern — every panel, flap, glue tab and score line — provided as a flat template before any colour or artwork is applied. Packaging manufacturers use the same die line to cut the physical material.
Panels that look adjacent on a flat design might end up on opposite sides of a folded box. Artwork that ignores fold lines can end up split awkwardly across a seam, or a logo can land squarely on a glue tab that gets hidden during assembly.
We source or confirm your exact die line from your packaging manufacturer before design begins, build the artwork directly onto that flattened template, and generate a folded 3D mockup so you can see exactly how the finished package will read before it goes to print.