For hosts

QR codes and printing

Every event gets one QR code that opens its guest page. The QR and print tab turns it into files ready for a print shop, or for a home printer.

The QR and print tab with the QR code, download buttons, color settings, three table card designs, paper size, and the poster. — Host, one event, QR and print.

The code, with the address it opens, and how well it will scan (the contrast and the error correction).
Copy link, PNG, and SVG. The PNG is 1,200 pixels wide, which prints sharp at any table card size. The SVG is for a designer or a print shop that asks for vector art.
Customize: the color of the code, and the event logo in the middle (upload the logo under Settings first). The background is always white, because that is what scanners read best.
Paper size: US Letter or A4.
Table cards: three designs, four cards to a page with crop marks. Click a design to download it. When the host turns it on in Sponsors, each card thanks the sponsors in one line under the code.
Download the poster: one big code on one page, for a sign by the door or an easel.

Always scan a test print before the event. A code that looks fine on screen can fail on paper if the contrast is low or the print is small. GuestLens raises the error correction when you add a logo, but paper and ink still vary.

Before you print a hundred

Print one card and scan it with two different phones.
Keep the white edge around the code. Trimming into it stops the code from working.
Matte paper reads better than glossy paper under venue lights.
Do not make the code smaller than about one inch (2.5 cm).

The code always points at the event address. If the host sets a custom hostname, the code uses that hostname instead, so download it again after setting one.