Whole label is smaller
The 4×6 boundary measures around 3.7×5.6 or the barcode looks compressed.
Disable Fit to Page, choose Actual Size, then calculate the correction if the ruler measurement is still off.
Calculate corrected scaletroubleshooting guide
Fix shipping label printing problems: my shipping label is printing too small. Check scale, paper, margins, orientation and barcode quiet zones.
Best next step
Start with the tool or template that matches this guide before printing paid postage again.
Most tiny labels are caused by Fit to Page, wrong paper size or browser margin settings. Reprint at 100% / Actual Size, then measure a blank template if the problem continues.
Symptom-led fix
Follow the symptom that best matches your bad print. Each step points to the safest next tool before you buy postage again.
The 4×6 boundary measures around 3.7×5.6 or the barcode looks compressed.
Disable Fit to Page, choose Actual Size, then calculate the correction if the ruler measurement is still off.
Calculate corrected scaleThe browser added margins or shrank the PDF to fit the sheet.
Download the label PDF and print from a PDF viewer at 100% before changing marketplace settings.
Check PDF page sizeEvery label from this printer is slightly small.
Run a calibration sheet so you know whether the printer driver or the label file is causing the shrink.
Print calibration sheetOpen the print dialog and choose 100% or Actual Size. Avoid Fit to Page because it can shrink the barcode and label boundaries. If you printed from a browser preview, download the PDF and retry from a PDF viewer.
Confirm the paper in your printer matches the label PDF. A 4×6 roll should not be printed as Letter, and Letter sheets should not crop the label area. If the output is rotated, switch portrait/landscape before changing scale.
Print a blank template before buying new labels or reprinting postage. If the template is wrong, the carrier label will also be wrong. Measure the printed border and compare it to the target size.
If the whole label is the wrong size, fix scale. If only one edge is missing, fix paper size, margins or roll alignment. If the size is correct but scans fail, inspect print density, barcode quiet zone, tape glare and label damage.
This guide is based on recurring seller-support patterns: labels printed from browser previews, PDF viewers resizing files, thermal rolls loaded off-center, and barcodes losing quiet-zone whitespace.
When a platform or carrier offers a specific label-format setting, follow that official setting first, then use the checker and templates here to confirm print scale, paper size, orientation, and barcode quiet zone before shipping.
For troubleshooting, prioritize fixes that include printer model, paper size, PDF viewer, and scale setting before reprinting paid postage.
Usually no. First fix the print settings and reprint the original PDF if your platform allows it.
Barcode scanners expect the bars and quiet zone to remain within tolerance. Shrinking can make scans fail.
Yes. Glossy tape over a barcode can reflect light and reduce scan reliability.
Download the label PDF, print from a PDF viewer at 100% / Actual Size and make sure the selected paper size matches the paper in the printer.
Print a blank template at 100%. If the template is also wrong, fix printer settings before changing the label file or buying new postage.