MicroPDF417 is two-dimensional (2D) stacked barcode symbology invented in 1996,[1] by Frederick Schuessler, Kevin Hunter, Sundeep Kumar and Cary Chu from Symbol Technologies company. MicroPDF417 consists from specially encoded Row Address Patterns (RAP) columns and aligned to them Data columns encoded in "417" sequence which was invented in 1990.[2] In 2006, the standard was registered as ISO/IEC 24728:2006.[3]
MicroPDF417 barcode can be read with both barcode reader technologies like laser scanners and camera-based readers. As most of 2D barcodes, MicroPDF417 standard contains Reed–Solomon error correction with ability to read corrupted images and high data density. However, data which can be encoded in MicroPDF417 is only 150 bytes or 250 alphanumeric characters in the biggest 4-columns version.[4] Also, because of design, MicroPDF417 barcode can be used only for high-quality documents and images.
MicroPDF417 in common modes can encode text, numeric, binary data and Unicode text with Extended Channel Interpretation. Additionally, MicroPDF417 contains special modes which can encode text and numeric data in special formats, which can be used, as an example, in GS1 Composite bar code symbology.[5]
^Frederick Schuessler; Kevin Hunter; Sundeep Kumar; Cary Chu (16 October 1996). "United States Patent US5811787A by Symbol Technologies LLC "Two-dimensional bar code symbology using implicit version information encoding"". patents.google.com. United States Patent and Trademark Office.
^Theodosios Pavlidis; Yajium P. Wang; Jerome Swartz (5 January 1990). "United States Patent US5811787A by Symbol Technologies LLC "High density two-dimensional bar code symbol"". patents.google.com. United States Patent and Trademark Office.
^ISO/IEC (2020). "ISO/IEC 24728:2006 "Information technology Automatic identification and data capture techniques MicroPDF417 bar code symbology specification"". iso.org. International Organization for Standardization(ISO). ISO/IEC 24728.
^"Beginners Guide to 2-D Barcodes" (PDF). www.identifydirect.com. Identify Direct Ltd. p. 19.
^ISO/IEC (2023). "ISO/IEC 24723:2010 "Information technology Automatic identification and data capture techniques GS1 Composite bar code symbology specification"". iso.org. International Organization for Standardization(ISO). ISO/IEC 24723.
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