Barcode
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Frequently Asked Questions
What is a barcode?
A barcode is a visual representation of data using parallel lines (1D) or patterns (2D like QR codes). It encodes information that can be read by optical scanners.
What is the difference between 1D and 2D barcodes?
1D barcodes (EAN, UPC, Code128) store data in horizontal lines. 2D barcodes (QR, DataMatrix) use patterns and store much more data including URLs and text.
Which barcode format should I use?
Use EAN/UPC for retail products, Code128 for shipping/logistics, QR codes for URLs and marketing, and DataMatrix for small items or industrial use.