LabelWizard

Shipping label basics for new Flipkart & Amazon sellers

If you are packing your first orders, here is what a shipping label actually needs to contain, and why marketplaces standardised on 4×6 thermal format.

Updated 22 August 2026

What must be on the label

  • AWB / tracking barcode the courier scans at pickup and at each hub
  • Delivery address
  • Return / seller address
  • Order ID and, where relevant, SKU or product details

Why 4×6 / 100×150 mm

Sortation hubs are built around scanning a sticker of this size, thermal roll stock at 4×6 is cheaper per label than printing a full A4 page, and one sticker per parcel is faster to produce at volume than a full-page printout.

How marketplaces differ

The exact PDF layout varies by marketplace and shipment type, but the underlying seller problem is usually the same: the file you download does not always match your printer’s paper size out of the box. Flipkart Seller Hub, for example, often generates an A4 page that mixes the shipping label with invoice content — see Flipkart A4 to thermal label for what that looks like and how to fix it.

What this tool does today

LabelWizard currently processes Flipkart Seller Hub PDFs only — cropping and resizing them into genuine 4×6 pages, entirely in your browser. Support for Amazon or Meesho PDFs is not live yet; do not expect files from those platforms to process correctly here. If you sell on Flipkart, start with the Flipkart shipping label cropper.

Checklist before your first shipment

  1. Confirm your printer accepts 4×6 / 100×150 mm stock.
  2. Download the shipping PDF from your seller panel.
  3. Check whether it needs cropping or resizing — most A4-formatted PDFs do.
  4. Process and print at 100% / Actual Size, not Fit to page.
  5. Scan the printed barcode with a phone scanning app before dispatch.

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