Fix awkward shipping label PDFs before they waste another label.
Free LabelChop tools for ecommerce sellers using 4x6 and 100x150mm thermal printers. Convert A4 labels, test printer alignment and troubleshoot label-size problems without booking a call.
A4 to 4x6 shipping label converter
Upload an A4 or Letter shipping-label PDF and download a 4x6 / 100x150mm thermal-printer version for carrier, marketplace and ecommerce workflows.
Open toolShipping label size checker
Upload a shipping-label PDF and check whether it is A4, Letter, A6, 4x6 or 100x150mm before thermal printing.
Open toolCarrier format label tool
Check whether a carrier or marketplace label PDF is A4, Letter, A6, 4x6, 6x4 or 100x150mm before printing.
Open toolShipping label batch tool
Check multi-label shipping PDFs before batch printing: count pages, spot A4 or Letter pages and avoid wasting 4x6 thermal labels.
Open toolShipping label template PDF
Create a printable 4x6 / 100x150mm shipping label template with ship-to, return address and order reference fields.
Open toolShipping label size converter
Convert 4x6, 100x150mm, A6, A4 and Dymo label sizes between millimetres, inches and pixels/DPI.
Open toolMyPost Business label size checker
Check whether your MyPost Business label is A4, A6, 4x6 or 100x150mm and whether it needs cropping before thermal printing.
Open toolThermal printer test label PDF
Download a free 4x6 / 100x150mm test label PDF to check scale, margins, barcode sharpness and print alignment before wasting real labels.
Open toolRoyal Mail label printer setup
Check Royal Mail and Click & Drop 6x4 thermal-printer setup: PDF page size, print scale, paper preset, calibration and barcode symptoms.
Open toolRoyal Mail label size checker
Check whether a Royal Mail or Click & Drop PDF is ready for 6x4 thermal printing, or needs a scale, crop or page-size fix first.
Open toolRoyal Mail Click & Drop label printer checklist
Run a 6x4 thermal-printer setup checklist for Click & Drop PDFs: page size, paper preset, print scale and barcode quality.
Open toolShipping label printing too small diagnostic
Find the PDF page-size, print scale or thermal-printer preset that is shrinking your 4x6 shipping label before you waste more labels.
Open tool4x6 shipping label settings checker
Check PDF size, printer paper preset, scale and barcode symptoms before USPS, carrier or marketplace labels print tiny, clipped, blank or blurry.
Open toolBlurry shipping label barcode checker
Diagnose blurry, faint or hard-to-scan 4x6 barcode problems from screenshots, PDF scaling, darkness, speed, label stock or the print head.
Open toolShipping margin leak check
Request a free 2–3 product diagnostic to see whether free shipping, flat rates, packaging or regional postcodes are eating ecommerce margin.
Open toolShipping cost leakage checker
Request a $99 founding audit from Shopify orders, shipping-label exports or carrier invoices to find overcharges, DIM-weight leaks and parcel surcharges.
Open toolDymo Australia Post print settings
Get Dymo 4XL, 5XL and LabelWriter settings for Australia Post and MyPost Business thermal shipping labels.
Open toolZebra Australia Post label settings
Get Zebra ZD421, GK420d, ZD220 and ZD420 settings for MyPost Business and Australia Post labels.
Open toolMUNBYN Australia Post label settings
Get MUNBYN thermal printer settings for Australia Post, MyPost Business, eBay and Shopify labels.
Open toolBrother QL-1100 Australia Post settings
Get Brother QL-1100 and QL-1110NWB settings for Australia Post, MyPost Business and 4x6 thermal labels.
Open toolRollo Australia Post label settings
Get Rollo USB and wireless printer settings for Australia Post, MyPost Business and marketplace shipping labels.
Open toolDoing this more than once a week?
LabelChop watches your Downloads folder, detects shipping-label PDFs, crops them to 4x6 / 100x150mm and sends them to the right thermal printer automatically.