Packaging lasts. The page behind it can change.

• A product page. Instructions, ingredients, care, warranty registration or how to reorder.
• Or a PDF. A manual, an assembly guide or a safety sheet.

Instructions get updated, websites move, and a product can need a notice after it’s sold. Change where the code goes in Your codes and every box already printed follows. Packaging can stay in use for years, so check what happens to printed codes if you stop, below.

Changes

Change what it opens in Your codes. We check a new address or file first, usually within seconds, then every printed copy follows. You can undo a change.

Scans

Counted by day, device and city.

If you stop

Printed codes work to the end of what you paid for, and we email you 7 days before they would stop.

Short link

Never given to anyone else, so a printed code never leads to someone else’s page.

Smallest size

At least 1 inch wide in the style above. A logo or finer dots can make it bigger, so the designer and the download page work it out for your design.

Distance

People can scan a code from up to about 10 times its width away.

Contrast

Keep it dark on a light background. The designer blocks colors too light to scan in print, even when they look fine on screen, and light codes on dark backgrounds.

White margin

Every file comes with a white margin as wide as 4 of the code’s dots. Keep at least 2 of them clear: don’t crop into it or print over it.

Curved surfaces

Bottles, jars and cups bend the code away from the camera. Print it bigger there, or put it on the flattest part.

Seams and folds

Keep the code off seams, folds and edges, where it can crease or be cut.

Test print

Before you print a lot, print one copy at the real size and scan it with more than one phone, from as far away as people will be.

More in printing and sizing.