Qr
codes what is the size?
To effectively scan the QR code it should appear to be at least 1cm (0.4
inches) across in the viewport of the scanning device, and as the distance
between the camera and the QR code increases, the size of the QR code will need
to increase to compensate. For most smartphones the relationship between scan
distance and minimum QR code size is approximately 10:1 so a 2.5cm (1 inch) QR
code printed in a magazine will have a nominal effective scan distance of about
250mm (10 inches), and a QR code on a billboard 20 metres (65 feet) from the
where a passer-by would be scanning it would probably need to be about 2 metres
(6.5 feet) across.
SOLUTION:
On the Microsoft office picture manager we have resized one QR code from 100% to 75% to 50% but this is too small therefore we tried 60% and it was a decent size.
55% is the
standard size.
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