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Thank you for your tips they solved the mystery a little. While exploring different online QR code generator (free), more questions found: (should I create a new "off topic" for this now ) - why would those free online QR code generator have different QR image as a result, for exactly the same piece of text/URL/content? - how actually those QR codes are generated? - how do you know if those free generators have "implanted" tracking code or not? - will there be a copyright issue of using those QR code generated for free???

Hi there! So now I have some complex QR code images (look like the attached) in 450x450px which I need to resize each of them to 60x60px for a website. I've tried the "resize" option (with different sampling method) but I either get a blurred image("unscannable" without "zoom-in") or a sharp image but with the dots not quite at the right place. What do you think?

so now I have some complex QR code images (look like the attached) in 450x450px which I need to resize each of them to 60x60px. I've tried the "resize" option (with different sampling method) but I either get a blurred image or a sharp image but with the dots not quite at the right place. What do you think?