Enter the first roll number and how many rolls — get sequential numbers on an Avery 94219 sheet (1″×1½″, 32 per sheet).
Print the alignment sheet at 100% / Actual size (no “fit to page”) onto a blank sheet and hold it over your labels. If the boxes are off, nudge these until they line up — the values are remembered on this computer.
Tip: numbers increment from the trailing digits and keep the prefix & zero-padding — 100223-4306297 → …6298, …6299. When printing the PDF, set scaling to 100% / Actual size.