Choose format and data before layout
Use the retail format required by your channel, or Code 128 for compatible internal references. Check EAN/UPC length and checksum before printing. Our label tool repeats one value; it does not import CSV rows.
Choose 50×30 or 70×40 mm labels and A4 or Letter. These are generic sheet layouts with ten-millimetre page margins, not templates calibrated for a named adhesive paper product.
Leave the barcode proportions alone
Keep bars upright and preserve the blank space at both ends. Stretching a barcode to fill a box changes bar widths; cropping blank margins can make scanning less reliable.
A long Code 128 reference may not fit the smaller label. Shorten its data or increase label size. The tool warns when fitting would make its modules too narrow for this print template.
Control browser and printer settings
Choose Print / Save as PDF. Set scale to 100% or actual size, disable headers and footers and match the selected paper. Do not use “fit to page” when measuring fixed-size labels.
Print one sheet first. Measure the label and clear space with a ruler, and compare the result to your receiving system’s requirements. Browser defaults and printer margins can vary.
Test the actual workflow
Scan a sample using the scanner and software used by the team. Check that the decoded value preserves leading zeroes and resolves to the expected record.
For retail production, confirm applicable GS1 sizing and verification requirements. This convenience tool does not certify barcode quality or commercial compliance.