Reason 1: Raster Image Scaling (Raster vs Vector)
When you download a small 200x200 PNG QR code and scale it up for an A3 poster or storefront vinyl, the edges become blurry and pixelated.
Smartphone cameras rely on sharp contrast line detection. If the edge pixels are fuzzy, the camera scanner fails.
✅ The Iltiqa Solution: Export in vector SVG or PDF format. Vector graphics never lose crispness regardless of scale!
Reason 2: Neglecting the Quiet Zone Margin
The quiet zone is the blank white safety border around all 4 sides of the QR code.
Placing graphics or text too close to the QR edge prevents camera algorithms from isolating the matrix.