Units: $w and $h
| API | $w |
$h |
|---|---|---|
| DNS1D (1D) | Width of a single bar in pixels | Total barcode height in pixels |
| DNS2D (QR / DM / PDF417) | Width of a module in pixels | Height of a module in pixels |
Larger $w / $h = larger image. Typical starting points:
- 1D labels:
$w = 2–3,$h = 50–80 - QR for screen:
$w = $h = 4–8 - QR for print:
$w = $h = 8–12