I'm looking to pick the collective brain, I'm thinking about adding a QR code to some adverts, what I don't know is if there is an optimum size that you shouldn't go below.
This is an area which I'm only just starting to get to grips with, so comments would be very gratefully received.
This is an area which I'm only just starting to get to grips with, so comments would be very gratefully received.
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