qrzen.io
Media & materials

Your QR looks good on anything

Paper, product, shop window or screen: a well-generated code scans on the first try on any surface. We show you where to put it and how to do it right.

qrzen

Marc Soler

Founder · Lumière

+34 600 12 34 56 lumiere.cafe

Scan to save

01 — Where to place it

A code for every surface

Four families of media, each with its ideal spot. Choose where your campaign fits.

Print

paper & card

Business card

Save your contact without typing.

Flyer & brochure

From paper to the online promo.

Poster & sign

Grab attention from afar.

Receipt & invoice

Survey or post-sale warranty.

Product

packaging & merch

Packaging

Instructions, origin or recipes.

T-shirt & merch

Take your brand to a playlist.

Label & sticker

Authenticity and traceability.

Table stand

The menu, always on the table.

Outdoor

public space & vehicles

Billboard

Big size, big module.

Shop window

Sell when you’re closed.

Vehicle

Your fleet as mobile advertising.

Digital

screens

TV & spots

Turn the audience into visits.

Presentation

Share resources in talks.

Email & signature

From desktop to the reader’s phone.

02 — Best practices

So it scans on the first try

Five rules that make the difference between a QR that works and one people ignore.

01Minimum size

2×2 cm for short distances. Rule of thumb: scan distance ÷ 10.

02High contrast

Dark on light, always. Avoid weak gradients and color on color.

03Quiet zone

Leave a white margin around it (≈4 modules). No text or graphics stuck to it.

04Call to action

Say what the scanner gets: "See menu", "10% off". Multiplies scans.

05Test it first

Scan it with several phones and at the real distance before printing 10,000.

Golden tip

Always use a dynamic QR on print: if you get the link wrong, you fix it without reprinting.

Design it to your brand and download it

Export to vector SVG to print at any size without losing sharpness.