Flyers and posters
Size it for the distance, name it for the batch
A poster code has to be scannable from across a room, not from six inches away like a flyer in someone's hand. Give each print batch or delivery district its own code so you can measure which drop actually produced scans.
Size and scan distance
The rule of thumb: a QR code needs to be roughly one-tenth the scan distance across. A code meant to be read from ten feet away needs to be about a foot across; a flyer held at arm's length, roughly sixteen inches away, can use a code closer to an inch and a half.
Posters get this wrong constantly by shrinking the code to fit a corner of the layout. If the poster is meant to be read from across a street or a room, the code needs real size, not a token gesture toward having one.
Leaflet drop vs street poster vs handheld flyer
| Format | Typical scan distance | Design implication |
|---|---|---|
| Door-to-door leaflet | 8–16 inches, in hand | Small code is fine; put it near the offer, not buried in a footer |
| Handheld flyer, event or street team | 1–2 feet | Medium code, high contrast, since lighting outdoors varies |
| Wall or window poster | 3–10 feet | Large code, thick quiet zone, positioned at eye height not near the ground |
| Transit or billboard poster | 10+ feet, often moving past | Very large code; test from a moving vantage point if it's roadside |
Code per district or batch
- If a leaflet drop covers several postcodes or neighborhoods, use a separate code per area so you can see which geography actually responds — the coarse location data on each scan tells you roughly where it happened, but a per-area code makes the comparison unambiguous.
- For repeat print runs of the same flyer, a new code per batch or print date lets you tell a slow-burning older batch apart from a fresh drop, rather than lumping all scans together under one number.
- Keep a simple log: code name, area or batch, quantity printed, distribution date. Without it, a scan spike three weeks later is hard to explain.
Writing a call-to-action that gets the code scanned
- State the benefit next to the code, not just 'scan here' — "Scan for 20% off" outperforms a bare instruction because it tells people why before they act.
- Keep the CTA short enough to read at the same distance the code needs to be legible from; a poster with tiny CTA text next to a large code undermines its own design.
- Use an arrow or clear visual proximity between the CTA text and the code itself. On a busy flyer layout, an unlabeled code near unrelated content gets ignored.
- Avoid vague CTAs like "learn more" on a printed piece — say what happens next: "scan to book", "scan to see the menu", "scan to enter".
Measuring response rate across drops
Response rate for a print drop is scans divided by however many pieces you distributed or estimate were seen. It's a rough measure — most people who see a flyer never engage with it at all regardless of channel — but comparing batches against each other on the same terms is more useful than treating any single number as a verdict.
Compare scan timing to distribution date. A flyer batch delivered Monday that shows most of its scans within 48 hours is behaving as expected; a batch still generating scans steadily three weeks out suggests it's sitting somewhere people return to, like a noticeboard or a waiting room rather than a doormat.
When a flyer code will underperform no matter what
Small print runs with low real-world reach won't generate a statistically meaningful scan count regardless of design — treat the analytics from a 200-piece drop as anecdote, not proof, and be cautious drawing strong conclusions from a handful of scans.
A poster in a poorly lit stairwell or behind glass with heavy glare will underperform no matter how well the code is designed. Check the actual installed location in person if the format allows, not just the artwork proof.
Common questions
- How big should a QR code be on a poster?
- Roughly one-tenth of the intended scan distance across. A poster meant to be read from ten feet away needs a code close to a foot wide.
- Should every flyer batch have its own QR code?
- Yes, if you want to compare which print run or delivery area performed. One shared code across every drop only tells you a total, not which batch worked.
- What call-to-action works best next to a QR code?
- One that states the benefit, like "Scan for 20% off" or "Scan to book", rather than a bare "scan here" with no reason attached.
- How do I measure the response rate of a flyer drop?
- Divide scans by the number of pieces distributed or your best estimate of reach. It's an approximate figure, most useful for comparing one batch against another rather than as an absolute number.
- Why are scans still coming in weeks after a flyer drop?
- It usually means the flyer landed somewhere people return to, like a noticeboard or waiting room, rather than being read once and discarded like most doormat deliveries.
Keep reading
- QR code size and scan distanceThe 10:1 rule, minimum print sizes and quiet-zone requirements.
- Marketing campaignsAttribute offline campaigns with one code per placement.
- QR code analyticsSee when, where and on what device your printed material gets scanned.
- Dynamic QR codesHow editable QR codes work and why they beat static codes in print.
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