Shipping label batch tool for 4x6 thermal printer PDFs
Upload a multi-label shipping PDF and check whether the pages are ready for 4x6 / 100x150mm thermal printing, or whether an A4, Letter, A6 or awkward page size needs fixing before you print the whole batch.
Check a multi-label PDF
Upload a PDF to count pages and spot A4, Letter, A6, 4x6 or awkward sizes before batch printing. Files are read for this request only and are not stored.
Check the PDF before printing 20 labels
Batch PDFs hide problems. One wrong page size can waste a strip of labels before you notice the barcode is tiny or cut off.
Separate printer problems from PDF problems
If every page is already 4x6, focus on printer scale, orientation and calibration. If pages are A4 or Letter, fix the PDF first.
Automate the repeated crop-and-print step
When the same awkward carrier or marketplace PDF shows up every day, folder-to-printer automation is usually faster than manual cropping.
How to check a batch of shipping labels before printing
- Download the shipping-label PDF from your carrier, marketplace or shipping tool.
- Upload it to the checker on this page.
- Confirm how many pages are 4x6, 100x150mm or A6 sized.
- Flag any A4, Letter or custom pages before they reach the printer.
- Print one test label first, then print the full batch once scale and orientation look right.
This is not a carrier integration. It is a quick PDF workflow check for sellers who already have label files and want to avoid wasting a whole batch of thermal labels.
Print settings that matter for batch labels
- Use 4x6 inches or 100x150mm as the thermal-printer paper size.
- Print at actual size or 100% when the PDF pages are already 4x6.
- Do not use fit to page on a correct 4x6 PDF unless your test label proves it is needed.
- Check portrait versus landscape in preview before printing the full queue.
- Calibrate the printer if labels drift after the first few pages.
When batch printing needs automation instead of another manual fix
Manual checking is fine for the odd PDF. It gets painful when MyPost Business, Royal Mail, USPS, eBay, Shopify, Etsy or another workflow keeps giving you PDFs that need the same crop, resize or print-setting dance every day.
That is where LabelChop fits. It watches your Downloads folder, detects compatible shipping-label PDFs, crops or resizes them to 4x6 / 100x150mm and prints or saves the output automatically. Use the free checker for diagnosis, then automate the recurring workflow once the pattern is obvious.
FAQ
What is a shipping label batch tool?
It checks a multi-page shipping-label PDF before you print the whole batch, so you can catch A4, Letter, 4x6, A6 or awkward page-size problems first.
Does this tool store my uploaded PDF?
No. The PDF is read during the request to count pages and dimensions. It is not saved, and uploads are capped for practical batch checks.
Can I use it with MyPost, Royal Mail, USPS, eBay or Shopify PDFs?
Yes, use it with compatible carrier, marketplace or shipping-tool PDFs. LabelChop helps with PDF workflows, but it is not an official carrier integration.
What if my batch PDF is A4 or Letter?
For one-off files, convert or crop before printing. If awkward batch PDFs keep arriving, LabelChop can watch a folder and crop or print compatible PDFs automatically.