ITF-14 Barcode Generator API

ITF-14 is the GS1 standard barcode for identifying shipping cartons, cases, and pallets using the Interleaved 2 of 5 symbology. It always encodes exactly 14 digits, formed from a packaging indicator digit, a 12-digit GTIN base, and a check digit, and is printed larger and with wider bars than retail codes since it is scanned from forklift-mounted or conveyor scanners at greater distances. A bearer bar frame around the symbol is standard practice to protect print quality on corrugated cardboard.

Provide BarGen with 13 digits and format set to itf14, and the API appends the 14th check digit automatically using the standard GTIN modulo-10 algorithm. Output is available as SVG for die-cut carton artwork and print production or PNG for logistics documentation, with configurable bar height to match carton scanning distances.

ITF-14 (Interleaved Two of Five) is a GS1 standard barcode used primarily for marking shipping containers and cartons. The "14" refers to the 14 digits it encodes, which represent a Global Trade Item Number (GTIN-14).

The barcode uses the Interleaved 2 of 5 symbology, where digits are encoded in pairs—one in the bars and one in the spaces between them. This interleaving technique creates a compact and efficient barcode.

ITF-14 is designed to be printed directly on corrugated cardboard, which is why it often includes bearer bars (thick bars framing the code). These bearer bars ensure consistent print quality and protect against edge damage.

The primary application is logistics and supply chain management. ITF-14 identifies the packaging level of a product—whether it's a case, pallet, or other shipping unit containing multiple retail items, each with their own EAN/UPC codes.