On 10/03/2024 04:41, hw wrote:
\psbarcode{textblah foo}{height=0.6 width=0.6 eclevel=L}{qrcode}
That works for 600dpi laser printers. When you print the QR-code with
a 300dpi label printer you can't reliably scan it, not even when you
make the QR-code 1x1" in size.
Perhaps that's not a reasonable size?
Perhaps height and width are chosen improperly. An image some percents
smaller may be sharper.
- Find the dpi value in the specs of your printer
- Find number of pixels in QR code in QR specs (or just calculate them)
- Specify width and height so that the ration of 2 numbers above is a
whole number.
Image may become a bit larger or a bit smaller.
