The scale determines the physical dimensions of the barcode when it is printed. Barcode scanners can scan larger barcodes more accurately than smaller barcodes, so choose the scale that gives the largest dimensions that will fit on your document or packaging.

Note: Barillo will adjust the scale internally, taking into account the chosen DPI (see below), to ensure that bars do not start or end "in between" pixels. This keeps bars as crisp as possible, for better scanning accuracy, but does mean that the scale value shown here is approximate only.

The dots per inch (DPI) determines the definition of the exported image. Higher DPI values allow fine differences in the image to be better defined.

The dimensions in physical units and pixels are calculated automatically from the chosen scale and DPI. Change the physical units by selecting "mm" (for millimeters) or "in" (for inches) from the pull-down list.