Convert shipping labels to 4×6 for a thermal printer
Remove the blank space around a Letter or A4 PDF shipping label, rotate it upright and fit it to 4×6-inch paper. Free, with no upload or account.
Prepare an existing label for thermal printing while retaining the original PDF artwork.
Make a 4×6 labelFrom the first file to the finished document
1. Choose the label area
Open the PDF locally, auto trim whitespace, then check that addresses, barcodes and white quiet zones remain inside the crop.
Open the label cropper →2. Fit to the paper
Choose 4×6 inches and check rotation in the print preview. Save a preset on this device for future labels with the same layout.
Prepare a thermal label →3. Print and test
Choose matching 4×6 paper and Actual size / 100% in the print dialog. Test one label and confirm its barcode scans before a batch.
Read the printing checklist →
Before you send
- This prepares an existing PDF label; it does not buy postage or change its destination.
- Up to 25 MB and 50 pages. Encrypted or digitally signed PDFs require an unsigned, unencrypted source copy.
- One crop can be applied to matching page layouts. Inspect every page; multiple separate labels on one page are not automatically split.
How to print a Letter or A4 shipping label on 4×6 thermal paper →
A practical guide to cropping PDF label whitespace, preserving barcodes, choosing paper size and troubleshooting tiny or sideways thermal prints.