Editing Barcode (section)

===Example images===
<gallery caption="First, second and third generation barcodes">
File:UPC-A-036000291452.png|GTIN-12 number encoded in UPC-A barcode symbol. First and last digit are always placed outside the symbol to indicate Quiet Zones that are necessary for barcode scanners to work properly
File:EAN-13-5901234123457.svg|EAN-13 (GTIN-13) number encoded in EAN-13 barcode symbol. First digit is always placed outside the symbol, additionally right quiet zone indicator (>) is used to indicate Quiet Zones that are necessary for barcode scanners to work properly
File:Code93.png|"Wikipedia" encoded in [[Code 93]]
File:Code39.png|"*WIKI39*" encoded in [[Code 39]]
File:Wikipedia barcode 128.svg|"Wikipedia" encoded in [[Code 128]]
File:Codablock-F Example.png|An example of a ''stacked barcode''. Specifically a "Codablock" barcode.
File:Better Sample PDF417.png|[[PDF417]] sample
File:Lorem Ipsum.png|[[Lorem ipsum]] [[boilerplate text]] as four segment [[Data Matrix]] 2D
File:Azteccodeexample.svg|"This is an example Aztec symbol for Wikipedia" encoded in [[Aztec Code]]
File:EZcode.png|Text 'EZcode'
File:High Capacity Color Barcode.png| High Capacity Color Barcode of the URL for Wikipedia's article on [[High Capacity Color Barcode]]
File:Dataglyph511140.png|"Wikipedia, The Free Encyclopedia" in several languages encoded in [[DataGlyph]]s
File:35mm film audio macro.jpg|Two different 2D barcodes used in film: [[Dolby Digital]] between the sprocket holes with the "Double-D" logo in the middle, and [[Sony Dynamic Digital Sound]] in the blue area to the left of the sprocket holes
File:WikiQRCode.svg|The [[QR code]] for the Wikipedia URL. "Quick Response", the most popular 2D barcode. It is open in that the specification is disclosed and the patent is not exercised.<ref>[http://www.denso-wave.com/qrcode/qrstandard-e.html (株)デンソーウェーブ] {{Webarchive|url=https://web.archive.org/web/20120607102221/http://www.denso-wave.com/qrcode/qrstandard-e.html |date=7 June 2012 }}, denso-wave.com {{in lang|ja}} Copyright</ref>
File:MaxiCode.svg|[[MaxiCode]] example. This encodes the string "Wikipedia, The Free Encyclopedia"
File:Shotcode.png|[[ShotCode]] sample
File:Twibright Optar Detail Scanned.png|detail of [[Twibright Optar]] scan from laser printed paper, carrying 32&nbsp;kbit/s Ogg Vorbis digital music (48 seconds per A4 page)
File:KarTrak code.jpg|A [[KarTrak]] railroad [[Automatic Equipment Identification]] label on a caboose in Florida
</gallery>