Generate Barcodes of Different Formats 

A barcode is a graphical representation of alpha, numeric, or alphanumeric data represented by a series of bars and spaces. Barcodes are printed on a commodity and used especially for stock control.

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X formats = {"UPC", "Code128", "ITF", "Codabar"};

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X Table[{f, BarcodeImage["123456789999", f, 150]}, {f, formats}]

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A 2D barcode stores information both horizontally and vertically. It is similar to a 1D barcode, but has more data representation capability.

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X formats = {"QR", "Aztec", "DataMatrix", "PDF417"};

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X Table[{f, BarcodeImage["ABCD", f, 100]}, {f, formats}]

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Out[7]//TraditionalForm=