Barcode guides
Short, plain answers to the questions that come up when you make and print barcodes.
What each barcode format is forCode 128, EAN, UPC, ISBN, GS1-128, QR codes, and more, and the job each one does.A drawn barcode and a registered numberWhy drawing a barcode does not give you a product number, and where real numbers come from.How to print barcode labels that scanBar width, blank space, contrast, and print size: the checks that make a label scan.Barcode or QR code: which to useWhat each holds, what reads it, and which suits shops, stock, and links.