Setting up once
Tell TCGrail what you print on.
A thermal label printer, a Brother or an XPRINTER, takes rolls or pre‑cut labels. Tick the ones you own and the one that is loaded, and every label is drawn at that size. Set 203 or 300 DPI to match the printer, and the barcodes on postage print sharp enough to scan. No thermal printer? Your standard A4 printer works too.