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Cropping a Shopify shipping label to 4×6

June 18, 2026 · 4 min read

Shopify Shipping defaults to 8.5×11 US Letter, which wastes 60% of the page. Here are two ways to fix it — one permanent, one on-demand.

Option A: change Shopify's default (permanent)

  1. Shopify Admin → Settings → Shipping and delivery.
  2. Scroll to Shipping labels.
  3. Change Label format to 4 × 6 (thermal).
  4. Save. From this point forward every new label prints at 4×6.

This works for Shopify Shipping (US/CA/UK). For third-party apps like Shippo, Easyship or AfterShip the setting lives in each app's own preferences.

Option B: crop the PDF after downloading

Useful for legacy orders you already printed to Letter, or when a customer support agent re-sent you a label in the wrong size.

  1. Drop the PDF into the Shopify cropper.
  2. The Shopify preset auto-detects the label region.
  3. Export as 4×6 PDF. Hit print at 100% scale.

Handling packing slips

Shopify's packing slip is a separate PDF — don't try to crop it to 4×6. Print it on plain paper from any laser printer and slip it inside the package.

Which carriers does this cover?

Every carrier Shopify Shipping integrates with — USPS, UPS, DHL Express, Sendle, Canada Post, Royal Mail, EVRi. The 4×6 output is barcode-vector-preserved, so scan rates stay 100% at the sort centre.

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