Nitromule

Label format and printing settings

Updated 2026-09-07

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Label layout is configured once under Printing settings. Wrong format + fit-to-page is the usual cause of unscannable barcodes.

Set the label format

  1. Open Settings → Printing.
  2. Open the Labels subtab.
  3. Under Label layout, set Label format.
  4. Common choices:
    • 4 × 6 in PDF — thermal label printers
    • 8.5 × 11 in PDF (one label per page) — office printers
    • Other sizes listed in the dropdown (including narrower formats when shown)
  5. Adjust Print order / Text on label only if you need those options.
  6. Save.
  1. From Orders, select Download Label.
  2. In the print dialog, choose 100% / actual size (disable fit-to-page).
  3. Select the matching paper size for your printer.
  4. Confirm the barcode is sharp and fully on the stock.

If prints look wrong

Follow Troubleshoot printing labels — start with scale and Label format mismatch before buying another label.