Signage
Signage encompasses signs, posters, and information boards in public and commercial spaces. QR codes complement static signage limitations - one code adds unlimited digital content (details, multilingual support, video, booking forms) to space-constrained displays, updatable without reprinting.
Design principles: size proportional to viewing distance (2cm minimum at 1m, 10cm at 5m), contrast with surrounding design, clear CTA, and accessible height placement. Outdoor signage requires weather resistance - UV lamination and waterproof ink prevent degradation.