this post was submitted on 07 May 2022
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If you just want to pass on information, you can just write them out in text. Then whoever scans the code will simply see the text. I would say any QR reader you find will be able to do this. You don't need to make it an image.
Also, I don't think a QR code is as discreet as you think. Anyone can scan it, even the people you don't want to. I don't know who you want to target and who you want to avoid, but to me it doesn't seem like a QR code is good protection.