MyPost Business label size checker for A4, A6 and 4x6 labels
Work out whether your MyPost Business PDF is ready for a thermal printer or needs cropping before you waste another label.
Result
Probably A4 being shrunk onto a thermal label
Tiny output usually means an A4 PDF is being sent to a 4x6 printer. Crop or convert the PDF first, or change MyPost Business to A6 output.
- ✓ Check if the PDF page looks like a full A4 sheet
- ✓ If yes, convert it to 4x6
- ✓ Set scaling to 100%
- ✓ Test one label before batch printing
If you keep downloading A4 labels, LabelChop can watch your Downloads folder and crop them automatically.
How to fix MyPost Business labels for thermal printing
If your MyPost label opens as a full A4 page, change MyPost Business to A6 / one-label-per-page output where possible. If you already have an A4 PDF, crop or convert it before sending it to a 4x6 thermal printer.
- Check the PDF preview: full A4 page or single label?
- Set MyPost Business to A6 if available.
- Set your printer paper size to 100x150mm or 4x6.
- Print at Actual Size / 100% scale.
FAQ
Why does MyPost Business download A4 labels?
MyPost Business defaults to A4 because many users print on office printers. You can usually switch to A6 or one-label-per-page output in print settings.
Can I print an A4 MyPost label on a 4x6 thermal printer?
Yes, but you need to crop or convert the A4 PDF first. Otherwise the label often prints tiny, clipped or off-centre.
Is A6 the same as 4x6?
A6 is 105x148mm. 4x6 is 101.6x152.4mm. They are close enough for many label workflows, but your printer paper size must match your stock.
What is the best MyPost Business label size for thermal printers?
Use A6 / one label per page, 100x150mm or 4x6 output where available, then print at Actual Size / 100%.
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LabelChop watches your Downloads folder, detects awkward MyPost shipping-label PDFs, crops them to 4x6 / 100x150mm, and prints or saves them automatically.