Why won't an image of a barcode scan but a real bar code will?

Why won't an image of a barcode scan but a real bar code will?
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1 Answer

Answer :

Are you printing it out? I imagine that home printers can’t actually get the kind of tiny width differences that real bacodes have. And if it is on a screen, maybe the scanner is picking up the imperceptible-to-the-human-eye white spaces around all the pixels.
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