What is pdf417 barcode used for?
PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management. “PDF” stands for Portable Data File. The “417” signifies that each pattern in the code consists of 4 bars and spaces in a pattern that is 17 units (modules) long.
Is pdf417 a 2D barcode?
PDF417 is a widely used format for 2D barcodes that contains data in “codewords” that are stacked into multiple columns to make a machine-readable pattern. Each codeword is a horizontal strip made up of four dark bars alternating with four white spaces.
How do bar codes work?
In a nutshell, a barcode is a way to encode information into a visual pattern (those black lines and white spaces) that a machine (a barcode scanner) can read. A barcode scanner will read this pattern of black and white bars and translate them into a line of test that your retail point of sale system can understand.
How do data matrix codes work?
A data matrix code is a 2D code that is made of black and white cells that are typically arranged in a square pattern (although rectangular patterns also exist). The number of rows and columns increases with the amount of information stored in the code, which is limited to 2,335 alphanumeric characters.
What is the initial purpose of QR code?
The QR code system was invented in 1994 by Masahiro Hara from the Japanese company Denso Wave. The initial design was influenced by the black and white pieces on a Go board. Its purpose was to track vehicles during manufacturing; it was designed to allow high-speed component scanning.
What is the difference between QR code and Data Matrix?
A data matrix code is a 2D code that is made of black and white cells that are typically arranged in a square pattern (although rectangular patterns also exist). A QR code—or quick response code—is a 2D code that is made of black cells arranged in a square grid on a white background.
Can barcode scanners read all barcodes?
Not all barcode scanners can read all barcodes. Laser barcode scanners and linear imagers read only 1D barcode scanners. Imager (camera-based) 2D barcode scanners read all common 1D and 2D barcodes.