Can UPC Barcodes be Inverted?

I was wondering if the black and white parts of a UPCA barcode can be reversed. I couldn’t find any references online saying one way or the other, but I saw a ShopRite loyalty card today with just that situation, and my barcode scanner correctly read it, so empirically I would say yes, UPC barcodes can have their colors inverted

Posted by Greg Pinero (Primary Searcher) on Mar 12th, 2009 and is filed under Other.

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