Here are the examples again, diagramed for clarity:Įach symbol character consists of 4 bars and 4 spaces with a total width of 17 modules (hence the origin of 417 in the symbology’s name). In the examples above, the first symbol has 16 rows and 1 data column, while the second symbol has just 4 rows but 5 data columns. The number of data characters in each row is typically referred to as the number of data columns in the symbol. Both symbols have encoded the exact same data, but are using different layout options:Ī PDF417 symbol consists of 3 to 90 stacked rows of bar/space patterns. PDF417 barcodes are variable in size and layout, most commonly seen in rectangular configurations. Indeed, this was one of its primary design goals. Unlike most other two-dimensional barcodes though, PDF417 can be scanned with an appropriately configured laser scanner. Strictly speaking, PDF417 is classified as a stacked, linear barcode (similar in structure to the stacked variants of GS1 Databar), though it is often referred to as a two-dimensional barcode since it represents data using multiple rows and columns like Data Matrix. PDF417 (Portable Data File, or PDF-417) was introduced in 1990 by Symbol Technologies (since acquired by Motorola) as a high-capacity, highly secure symbology.
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