Barcode Generator for Product Labels

A barcode viewed on a monitor at a fixed, known distance can afford thinner bars, since the camera or eye examining it is always at a predictable, close range. A handheld scanner used in a warehouse or at a checkout counter is swept across a label at a variable angle and distance by a person's hand, often quickly and not perfectly perpendicular to the label surface, which makes a barcode with narrow, tightly packed bars considerably more prone to misreads under real-world handling conditions. Widening the module — the base unit width every bar is a multiple of — and increasing the overall height gives the scanner's sensor more physical margin for error in exactly the conditions a real handheld scan actually happens under, at the direct cost of a physically larger printed barcode.

This preset's wider modules and taller bars assume there is enough physical label space to accommodate the larger resulting barcode, which is worth checking against the actual label stock or packaging before finalising a print run — a barcode sized for reliable handheld scanning that does not fit the available label area is a real, physical constraint no scanning-reliability setting can work around. SVG output is what makes this straightforward to adjust: because it is vector rather than raster, scaling the generated barcode up or down to fit whatever label size is actually available introduces no blur or quality loss at all, unlike resizing a raster PNG export would.