Understanding Barcode Formats
Different barcode formats serve different purposes. Code 128 is the most versatile, encoding any ASCII character. EAN-13 and UPC-A are retail standards with built-in check digits. Code 39 is widely used in logistics for its simplicity. ITF-14 identifies shipping containers. Choose the format that matches your industry requirements.
Print Quality and Resolution
For print applications, use SVG export which scales to any size without quality loss. For screen use, PNG at 2x resolution ensures sharp rendering on high-DPI displays. Set bar width to at least 2px for reliable scanner readability, and maintain adequate quiet zones (white space) around the barcode.
Check Digits and Validation
EAN-13, EAN-8, and UPC-A formats include automatic check digit calculation. Enter the data digits without the check digit; the library computes and appends it automatically. This ensures every generated barcode passes validation when scanned by readers.
Batch Generation for Business Use
Batch mode lets you generate multiple barcodes simultaneously with consistent styling. Enter one value per entry, and all barcodes inherit the same format, dimensions, and color settings. This is ideal for creating product label sheets or inventory tag batches efficiently.
