Packaging artwork guide
Packaging dielines: what buyers should provide
A dieline is the flat technical outline used to define panels, flaps, cuts, creases and glue areas. It connects the finished pack to the sheet area and converting work needed to make it.
The practical answer
For an initial discussion, finished dimensions and clear structure evidence may be enough. For final production, use an approved dieline matched to the actual product and packing method. Keep artwork, cut/crease guides and special-finish layers clearly separated.
Finished size vs open size
Finished size describes the assembled pack; open size describes the flat extent. Flaps, seams and locks mean open size cannot be found by simply adding three finished dimensions.
What a dieline identifies
It should distinguish cut, crease, perforation, glue, window and bleed areas using clear production conventions.
Artwork placement
Keep important text and logos away from cuts, creases, seams and glue areas. Include bleed and confirm panel orientation before approval.
Special finishes
Foil, embossing and Spot UV should have separate named layers or files aligned to the final artwork and dieline.
When no dieline exists
Share the finished size, product/container dimensions, a physical sample or clear photos, packing orientation and desired opening style. Structure can then be proposed for review.
Production release
A preliminary quotation may use an identified assumption, but production should proceed only from the final approved structure, dimensions and artwork.