Shipping Label Cropper

Upload a label image, drag the crop box to the label itself, and download a clean 4×6 file sized for your printer.

Describe the result you need. AI will set up the tool and ask for any missing details.

Configure with AI

Enter to submit · Shift + Enter for a new line

Sent to AI. Leave out passwords and private customer data.

Drop a label image here or browse files

PNG, JPG or WEBP. It stays in your browser and is never uploaded.

Why labels need cropping

A marketplace or carrier sometimes emails or downloads a label as a full page (letter or A4) with the actual 4×6 label sitting in one corner, or with order details printed alongside it. Printing that whole page on a 4×6 thermal printer either fails or wastes label stock. Cropping to just the label first fixes both.

Getting the crop right

  1. 01

    Upload the label

    A PNG, JPG or WEBP image. PDFs aren't supported here, so screenshot or export the label as an image first if that's what you have.

  2. 02

    Adjust the crop box

    Auto-center gives you a sensible starting point; nudge the Left, Top and Width fields until the box sits exactly over the label. Height follows automatically to keep the 4:6 ratio.

  3. 03

    Pick your printer's resolution

    203 DPI covers most 4×6 desktop thermal printers (Zebra, Rollo and similar). Use 300 DPI only if your printer's specs say so.

  4. 04

    Download

    You get a plain 4×6 PNG at the pixel size your printer expects.

Questions people ask

Can I crop a PDF label?

Not directly. Open the PDF, take a screenshot or export it as an image, then upload that image here.

Does the image get uploaded anywhere?

No. It's read and cropped entirely in your browser using the canvas element, and never leaves your computer.

How do I know if my printer is 203 or 300 DPI?

Check the printer's spec sheet or the box it came in. Most budget and mid-range 4×6 thermal printers are 203 DPI; higher-end models are sometimes 300 DPI.

What if my label isn't a 4×6 ratio to begin with?

The crop box is locked to a 4:6 (2:3) ratio no matter what shape the source image is, so you're always cropping down to that ratio, not stretching or distorting it.

Want this builtinto your store?

I'm Emmanuel, a Shopify and WooCommerce developer. If this tool pointed at something you'd rather have fixed for you (a faster store, cleaner product data, a migration, a custom feature), send me a note.

Emmanuel Asika

Emmanuel Asika

Shopify & WooCommerce developer, Dublin

I build and fix online stores: new builds, migrations, speed, SEO and the custom bits apps can't do.

hello@emmanuelasika.com

Last reviewed 30 September 2026.