Print size and image resolution

There is no single minimum print size that works for every QR. The amount of data, density of the pattern, printing surface and viewing distance all matter.

For a square QR, preserve a clear margin at least four modules wide on every side. SVG keeps design edges sharp when scaled. For PNG, calculate pixels from the intended physical size: pixels = millimetres ÷ 25.4 × dpi. At 300 dpi, a 30 mm image needs about 355 pixels; that arithmetic alone does not guarantee a scan.

How to make it

Choose a physical size that leaves comfortable room in your layout.
Export SVG for design QR, or a sufficiently large PNG for a bitmap workflow.
Print at actual size and test the complete sheet before ordering copies.

Create →

Before you share

Frames and decorative silhouettes use part of the image area. The QR core may be much smaller than the outer dimensions, so measure and test the finished artwork.

From your first draft to a finished QR

Start with the action you want someone to take. Open the destination on a phone before copying its complete address. A page that works in your own signed-in browser may still ask a visitor to log in or request access. For a public handout, test it in a private browsing window and give the code a short caption explaining what opens. Keep a readable address or another way to get help nearby for people who cannot scan.

Use the suggested design as a starting point, then replace the sample content with your own. Choose dark dots on a light, solid background and leave the clear space around the code intact. If you add a logo, keep it small and check the warnings. The preview checks are useful feedback, but they cannot reproduce every phone camera, printer, light source or paper surface your audience will encounter.

Check it where people will use it

Download the actual file and scan that file, rather than relying only on the editor preview. For print, place it at its intended size, print one copy and try it with more than one phone. Check both the camera response and the page or connection it opens. Test from the distance and angle a visitor will use, including reflections from a cover, window or glossy table sign.

Keep the original SVG for scalable design artwork, or choose a large PNG when your layout tool needs a bitmap. Avoid screenshots, repeated compression and stretching the code into a rectangle. Save a copy of the destination address alongside the artwork. Review the destination again before a large print run and periodically after publication: the static pattern stays the same even if the linked website changes or disappears.

Reference: DENSO WAVE · QRcode.com