// FAQ

Frequently Asked Questions

If the code opens a stable page you control, you can replace the linked manual or update that page without changing the printed symbol. Preserve the encoded path and domain, manage redirects deliberately, and test access after every change. A deleted account, moved file, or expired domain will still break access.

Brand colors can work when the modules remain consistently darker than a plain light background and the quiet zone stays clear. Avoid low-contrast or reflective combinations, but do not rely on color names alone. Measure contrast as a screening step and test the final packaging under realistic lighting.

SVG files are resolution-independent vectors. Your packaging designer needs this format to ensure the code prints clearly at 300 DPI without pixelation on the assembly line.

Use the carrier required by the trading partner, sector, and scanning workflow. Consumer engagement commonly uses QR Code, while regulated or supply-chain applications may specify GS1 DataMatrix or another carrier. Confirm data syntax, size, placement, and scanner support before changing production artwork.

Generally no. A code can add detail, but required warnings, allergens and mandatory label statements should stay printed on the pack. We found no US rule letting a code replace required label text, and EU food rules require mandatory particulars in the prescribed form. Check the regulator for your product category.

For the product's whole life, including years in the customer's home. Encode a short permanent path on a domain you own, keep the domain and certificate renewed, and keep manuals for discontinued models online. Never link directly to a file in a personal cloud account.

Vendor guides suggest about 20 mm for curved surfaces and 25 mm (1 inch) or more for glossy, flexible or shrink-wrapped packs. Treat these as starting points: choose a matte finish, keep a four-module border, and test samples on the real substrate, curved as shipped.

Not on all packaging. Regulation (EU) 2025/40 applies from 12 August 2026 and lets a QR code carry certain information, with specific QR duties for reusable packaging and digital producer-scheme marking phasing in later. Dates for later items depend on implementing acts, so confirm them in the Official Journal.