| A QR ("quick response") code is a computer-generated barcode that contains text info. You can use them to deliver vCards, URLs, emails, telephone numbers, or even text message templates. When you scan them with a phone's camera, all is revealed. |  |
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There is no hard or fast rule for sizing QR codes. There are many factors that come into play, such as the amount of information in the code, color, paper, etc. However, we do have some helpful tips and loose guidelines that can help determine the right size!
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Foil
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Foil and QR codes are pretty much never a good combination. Applying liquid Foil causes it to pool and change shape slightly by nature, negating the precision needed to scan a QR code properly. A visual example of pooling can be found here. |
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Spot Gloss
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We do not recommend using Gloss on their QR Codes, however they do generally tend to work. We don’t recommend this as a great option because it is not fail-safe and may lead to a QR code that does not scan. |
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Size
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The more information linked to the QR code the denser the QR code will be. The denser the QR code the larger it needs to be. Try to keep the size no smaller than 12x12mm. Again, this is all dependent on things such as detail in the code, the color of the code, and the paper type it will be printed on. |
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Resolution
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If the QR code is a raster image there might be a problem with resolution. If the QR code is pixelated the scannability might be jeopardized. Recommend size resolution is 300dpi. MOO’s recommend files sizes for images: Recommended file sizes for images & photos |
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Color
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If the code color is not contrasting enough to the background color it will not be scannable. |
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