Relabely - Free 4x6 shipping label converter for online sellers

Marketplaces hand you a shipping label as a full 8.5x11 page with a 4x6 label tucked in one corner. Send that to a thermal printer and it either shrinks the label until the barcode stops scanning, or crops half of it off. Relabely finds the label on the page, crops it, turns it upright, and gives you a true 4x6 PDF to print at full size. It handles pages that hold both a shipping label and a packing slip by producing two labels. Everything runs in the browser, so the file never leaves your device. Free, no account.