# QR codes on flyers and leaflets

> A flyer is held in the hand and read from 20–30 cm, so a 2–3 cm code is enough. The bigger risks are cheap uncoated stock spreading the ink and the code being placed in the fold.

Source: https://useqr.app/qr-codes-on/flyers · Last reviewed 2026-08-21 · UseQR is free forever, MIT licensed, no signup.

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| Typical scan distance | **20–30 cm** |
|---|---|
| Minimum code width | **2–3 cm** |
| Error correction | **M** |

## Size

Held at 20–30 cm, a 2 cm code is comfortable and 3 cm is generous. There is little reason to
go larger — the space is better spent saying why someone should scan.

## Uncoated stock is the hidden problem

Most flyers are printed cheaply on uncoated paper, where ink spreads into the fibres. A
0.4 mm module can gain 15–20% in width, closing the gaps between modules. Two defences:
keep the payload short so modules stay large, and ask for a light **trap or choke** if the
printer offers it.

## Never place the code across a fold

A fold that crosses the pattern breaks it in two ways: the crease scatters light, and the
two halves sit at different angles to the camera. Keep the code and its quiet zone entirely
within one panel, at least 8 mm from any fold or trim edge.

## Give a reason

Flyers are read for two seconds. "Scan for 20% off your first order" gets scanned; a bare
code in the corner does not.

## Try it

- https://useqr.app/url
- https://useqr.app/size-calculator
- https://useqr.app/validate