so i recently purchased a Dymo label printer, unfortunately when i print the label out it doesn't print the right size. when i go to setting under Shopify and do a test print it prints perfectly the size were looking for
Although I am not 100% sure what your exact use case is, our Printout Designer might just do the trick. We support Dymo labels.
You can get it here: https://apps.shopify.com/printout-designer