How to put a QR code on packaging

Where in the dieline

The single biggest packaging-specific decision is position, because a box is a flat print that becomes a 3D object:

• One flat panel only. A code crossing a fold, edge or glue seam is broken by construction. Keep the entire code plus quiet zone at least 10 mm from every crease line in the dieline.
• Not the crumple zones. Corners and the areas around handles take the scuffs in transit. Centre-of-panel survives.
• Away from the retail barcode. Give the EAN/UPC and the QR code clear separation so neither camera nor till scanner grabs the wrong symbol.
• On cylinders (jars, tubes, cans), curvature caps the code width — the working limits are in cylindrical packaging.

Think about which panel faces the customer at the moment you want the scan: back panel for the in-hand read (ingredients, instructions), front only if the scan is the product story.

Size, contrast, error correction

• Size: packaging is scanned in the hand, at 20–40 cm — so 2.5–4 cm covers it under the 10:1 rule, and never below the 2 × 2 cm print floor. Confirm your payload with the size calculator.
• Contrast: dark modules on a light substrate, ≥ 40% luminance difference. On kraft board, black on unbleached brown usually passes but measure it — and beware white ink builds, which print unevenly.
• Error correction: Q or H. Packaging gets creased, scuffed, taped and shrink-wrapped; the damage budget of Q (25%) or H (30%) is what keeps the code working at the end of the logistics chain, not just on the proof.
• Corrugated and uncoated stocks spread ink; module edges fatten. The compensation is larger modules, covered in ink spread and dot gain.

What should it point at?

Packaging outlives campaigns. Encode a URL on a domain you control with a stable path (brand.com/p/product-name), and change what that page shows server-side — not a deep link into an ecommerce platform whose URL structure changes annually. The strategic options (manuals, authenticity, registration, offers) are mapped in QR codes on product packaging and the surface-specific print notes in packaging surfaces.

The GS1 note for retail products

If your product is sold at retail, one code may need to serve consumers and the supply chain. GS1 Digital Link encodes your GTIN inside an ordinary web URL, so a single QR code can open your product page for a shopper while carrying the identifier tills and scanners understand — the industry is actively migrating 2D codes to the point of sale under GS1's "Sunrise 2027" initiative. Whether that applies to you, and how the URL is structured, is covered in GS1 Digital Link in QR. For a small-batch product sold direct, a plain URL is fine; for supermarket shelves, have the GS1 conversation before printing a million cartons.

Prove it before the print run

Fold a physical mock-up from the proof, then scan the assembled box — flat proofs hide fold problems. Scuff a sample deliberately and scan again; that is your error-correction margin being spent as intended. The full protocol is in testing before printing, and the payload check takes seconds in the validator.

FAQ

Where should a QR code go on packaging?

On one flat panel, at least 10 mm from folds, edges and seams, clear of corners that take transit damage, and separated from the retail barcode. Choose the panel the customer faces at the moment the scan is useful.

What size QR code for a product box?

Between 2.5 and 4 cm for hand-held scanning at 20 to 40 cm, and never below 2 × 2 cm. Longer payloads need the larger end of the range so modules stay printable.

What error correction level for packaging?

Q or H. Packaging accumulates creases, scuffs and tape in transit, and the 25 to 30 percent damage budget is what keeps the code scanning at the shelf rather than only on the proof.

Do I need GS1 Digital Link on my packaging?

Only if the product moves through retail systems that read it — then one GS1 Digital Link code can serve both shoppers and scanners. Direct-to-consumer products do fine with a plain URL on a domain you control.