From the first poster to the last photo.

• Tickets or the RSVP page, while you’re selling seats or counting guests.
• The schedule, map or menu on the day, as a web page or a PDF.
• Photos, a recording or the next date once it’s over.
• Guest Wi-Fi, on a code of its own. A Wi-Fi code holds the network’s name and password, so phones offer to join without anyone typing them.

Plans change: the venue moves, the time shifts, the line-up changes. Change where the code goes in Your codes and every poster, ticket and badge already out there follows.

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, so a poster read from 5 feet away needs a code at least 6 inches wide.

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.

Tickets and badges

They’re held in a hand, so the smallest size is usually enough.

Dim rooms

Phones need light to read a code. Put it where the lighting is good, or print it bigger.

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.