What minimum size QR works in a newspaper ad?

Newsprint has lower contrast and resolution. Use at least 4 cm and level M with a short, simple URL.

Should each magazine insertion have its own QR?

Yes, so you can measure which publication drives response.

QR Codes in Print Advertising: Magazine, Newspaper, and Direct Mail

1. Sizing for Print Media

A magazine page is typically read at 30 to 45 cm. A minimum 3 cm code is adequate for a full-page or half-page ad. For a quarter-page ad with limited space, verify at 2.5 cm minimum.

2. Bleed and Trim

Lay out the code entirely within the safe area, away from trim lines. A trimmed quiet zone is an invisible failure: the ad prints and the code silently fails.

3. Tracking Per Insertion

Use a different short path per publication and issue date. You will know which insertions drive response and optimise your media plan.

4. Call to Action Copy

Place the call to action directly adjacent to the code. "Scan for 20% off your next order" earns more scans than a bare code with no context.

5. Direct Mail

For highly personalised direct mail, generate a unique code per recipient. Track individual-level response and attribute conversions to specific mailpieces.