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Java Barcode Generation Guide

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Barcode Types: Barcodes encode information visually for supply chain tracking
Linear barcodes include UPC-A (12 digits) and EAN-13 (13 digits)
Code 128 is compact linear code for logistics
PDF417 is stacked linear barcode with Reed-Solomon error correction
QR codes store large amounts of data in limited space
Popular Libraries: Barbecue supports 1D barcodes with various output formats
Barcode4j offers 2D formats including PDF417
ZXing is main library for QR codes in Java
QRGen provides simple QRCode generation API
Okapi supports over 50 barcode symbologies
Implementation: Libraries require Maven dependencies for setup
Barcode generation supports both linear and 2D formats
QR codes can be customized with text
Spring Boot web service can serve barcodes
Libraries support various output formats including PNG, GIF, JPEG