Print at Actual size, not Fit to page. The exported PDF is already
sized exactly to this stock. Almost every print dialog defaults to scaling the page
to fit, which shifts every label off its target — the usual symptom is labels
creeping further out of position down the sheet, or one label straddling two.
Set scale to 100% or “Actual size”, and match the printer driver's stock to the
sheet you are feeding.
How to print these
Import your products from a spreadsheet, a POS export, or a photo of a price list.
Pick a ready-made design, or build your own — price, name, size, barcode, cash/card pricing.
Choose Avery 5164 - Shipping (3-1/3" x 4", 6/sheet) as your stock.