A QR code is a compact way to represent text such as a web address, contact detail or short instruction. Creating one is easy; making it useful requires a stable destination, enough contrast and a quick real-world scan test.
Decide what the code should contain
A QR code can hold plain text or a URL directly. If it contains a web address, include the complete HTTPS link and open that exact link before generating the code.
Static QR codes cannot be edited after printing because the destination is built into the pattern. If the destination may change, use a stable page you control and update that page instead.
Make the code easy to scan
Use a dark code on a light background and leave clear empty space around every edge. Stretching, cropping or placing the code over a busy photograph can make scanning unreliable.
The final physical size depends on viewing distance. A code on a desk card can be smaller than one on a poster, but both should be tested with more than one phone before distribution.
- Keep strong foreground and background contrast.
- Do not crop the white quiet zone.
- Download at a size suitable for the final layout.
- Test the printed version, not only the screen preview.
Treat scanned links with care
A QR pattern hides the destination from casual view. Before opening a scanned link, check the address shown by the phone and avoid entering credentials or payment details on an unexpected domain.
Organisations should pair important QR codes with a readable short address or brand context so users can understand where the code is intended to lead.
Generate privately when possible
Kitalva creates the QR image from the text in your browser. Even so, do not place passwords, recovery codes or other secrets inside a QR code that may be shared or photographed.