QR codes for a shop: size, place and safety
A QR code is just a picture of a web address. The way it is printed and placed decides whether people scan it.
Test it first
Scan it with your own phone, and with an older or cheaper phone if you can. If it does not scan quickly, make it larger or print it darker.
Size and contrast
- Print it black on white, with a blank margin around it as wide as a few squares.
- At least 2.5 to 3 cm wide for scanning from arm's length; larger for a wall poster.
- Do not stretch it, colour it pale or put a logo over it.
Where to put it
At eye level where people wait: the table, the counter, the door. Add a line that says what it does: "Scan to see the menu". People will not scan a code that does not say why.
The link inside
The QR codes made here hold the whole link inside them, and the link holds your page. If you change the page you need a new link and a new QR code, so keep old printed ones until you have replaced them. A long link makes a denser code that is harder to scan from a distance; keep the page short.
Safety
- Check your own QR codes now and then: someone can stick another code over yours.
- Laminate or protect them in a frame.
- Tell customers they can ask staff for the menu, if they do not want to scan.
Common questions
Does a QR code expire?
The code itself does not. It always opens the same link, which keeps working as long as this site is online. A link made by this site holds its data inside it, so it does not depend on an account.
Can I put the QR on a banner?
Yes, make it large and test it from the distance people will stand at.
Keep going
Everything a visitor types is packed into the link and nothing is stored by us; answers and replies go to the sender's WhatsApp. The UPI link opens a UPI app with the amount filled in and has not been tested with every app. Example names, prices and dates are made up. No tax, advertising or legal rule is stated: check them where you live. Checked 14 November 2026.