Before You Print a QR Code

A QR code on a poster or card should help someone reach a useful page. Before printing copies, check the destination, the surrounding explanation and the printed result. This checklist is useful whichever generator you choose.

Explain where it leads

Add a short description of the destination and a readable web address beside the code, so scanning is optional. For content intended to be read online, prefer a clickable link. Nottinghamshire’s accessibility guidance

Keep the margin and shape intact

Leave an empty margin at least four modules wide on every side of an ordinary QR code. A module is one small square of its grid. Keep text, borders and illustrations outside that space, including when placing the export in a layout. DENSO WAVE on margins

Use a clearly contrasting dark code on a light background. Preserve its proportions when resizing. Distortion and overlaid artwork can make a code difficult or impossible to read; a logo or decorative style needs its own test. DENSO WAVE on reading problems

Choose the size for the actual print

There is no single minimum size in centimetres that this guide can recommend for every situation. DENSO WAVE relates module size to printing and reader capabilities. Test the finished layout at the intended print size and viewing distance. DENSO WAVE on module size

Generate the code and test a proof

Once the destination is ready, you can create its QR code with Lumelis QR, which supports links, text and PNG/SVG exports. A successful on-screen preview does not establish that the finished print will scan.

• Print one proof: Use the final layout and intended print size. Check it on the material you plan to use.
• Try more than one phone: Scan the printed proof in the expected lighting and from the expected distance. Check that the intended page opens, not just that a link is detected.
• Try the alternative: Type the displayed web address and confirm that it reaches the same content without requiring access you did not intend.
• Repeat after changes: Recheck after resizing, adding artwork or changing the layout. Keep the destination available for as long as the printed material is in use.

Two layout examples (illustrative)

• Event poster: Place “Programme and access details” beside the code and the event’s readable web address. Keep essential event information on the poster too.
• Portfolio card: Label the destination “Portfolio” and show its web address. For the emailed version, provide a clickable link.