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Editorial Team
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Asked: 2026-05-23T12:28:40+00:00

Not sure if this will get closed as not a real question but I

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Not sure if this will get closed as “not a real question” but I asked this on Superuser and it was closed for that very reason. We are thinking of implementing a QR code which will be sent to a number of users via a letter.

Now I’m aware that you can just Google ‘QR codes’ and there are a plethora of options that allow you to make a QR code. My question is thus; if we do go with this solution can we guarantee that it would work cross platform? I.e. on Android, iOS, Symbian etc? Once a QR code is generated will it work on ANY app on ANY platform?

Thanks and apologies if this is not really a ‘programming question’

Thanks

Kiran

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1 Answer

  1. Editorial Team

    The only time I have had problems is when the resolution of the screen displaying/the printer that printed the QR code was too low. Ensure that your QR code is big enough for the data its holding and you should be ok.

    I found if I padded out the data in my QRCode with spaces or zeros I could maintain a set size which helped me place it on a page and always know its size.

    Kind of a suck it and see problem though

    Edit

    PS. Don’t use QRCodes for the sake of using QRCodes – if you’re sending the user the QRCode by email why not just send them a hyperlink?!

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