NOTE: The Code 39 barcode is not recommended for small labels where large amount of data must be encoded. A Code 128 barcode would be preferable this case.
PDF417 is a 2D barcode (stacked symbology) used in a variety of applications, primarily transport, identification cards, and inventory management. PDF stands for Portable Data File and was developed by Symbol Technologies. PDF417 uses built-in error correction to ensure better readability.
A single PDF417 symbol can be imagined as multiple linear bar-codes (called “rows”) stacked above each other. This is the reason why the PDF417 symbology is sometimes called a “stacked linear symbology”. The overall shape of a PDF417 is rectangular.
The 2D Data Matrix barcode is also the recommended choice when sending barcodes over faxed documents because the symbol can withstand many poor resolution and scanning issues. The required Reed-Solomon error correction built into Data Matrix ECC200 is able to reconstruct and verify the data scanned for improved accuracy.
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