What is a QR code and how is it used on invitations?
A QR code is a square barcode that instantly opens a link, location or text when scanned with a phone camera. No app is needed; modern phone cameras recognise QR codes automatically.
On invitations it is most often used for the venue location: guests scan the code, Google Maps opens and they get directions with one tap. A WhatsApp RSVP code, a shared photo album link or a wedding website are also popular.
Use the SVG file for print; it stays sharp at any size. Print the code at least 2 × 2 cm, leave space around it and use a dark colour on a light background.