Barcode types (JAN/EAN-13, CODE128, CODE39), how a 13-digit JAN works, and tips for scannable codes.
What this poster covers
What is a barcode?
Common types
How a 13-digit JAN works
Tips for clean barcodes
📝 Note: the poster image is in Japanese (made for Japanese students).
Usage: Free to print and use for learning and classroom display at schools and homes (no sign-up). Tall, high-resolution PNG (1024×1536); A3 or larger is recommended for display. Please refrain from selling, commercial use, or redistributing modified versions.