Placement of your barcode on a package can affect how well scanners read it. In general, for items that are scanned at the checkout, you would place the barcode in the lower right corner of the back of the package. To help ensure a clean scan, we always advise staying away from edge of packaging and leaving enough space around the barcode.
Make sure the barcode is positioned on a flat surface without touching the edge or crease of the packaging in any way. The barcode should not have any corner wrapping. Staples shouldn't be able to read the barcode. On paper with perforations, seams, folds, or absorbency, do not print.
In the manufacturing industry, pallets must have labels on two adjacent sides: the long side to the right of the short side and the short side itself. No regulation specifies whether the labels should be positioned to the left, in the middle, or to the right on these sides.