Shipping Label Resizer
Fit a shipping label to 4×6 in, 100×150 mm or a custom size at 203 or 300 DPI, as a PNG or an exact-size PDF.
Runs in your browser. Your input is processed on your device and is not uploaded to our server.
Scaling changes the printed barcode size. We cannot guarantee a barcode will scan, so test-print before shipping.
How to use the Shipping Label Resizer
- Drop a label image or PDF.
- Choose the label size, the DPI and how to fit the label.
- Check the scale warning, then download the PNG or the exact-size PDF.
Thermal printers usually print 4×6 inch or 100×150 mm labels at 203 or 300 DPI. This tool sets the output to exactly that size. By default it keeps the proportions and adds white margins if the shapes differ, because stretching distorts barcodes.
Scaling changes the printed size of the barcode. Some carriers set minimum barcode sizes, so the tool shows the scale it applied. Sharp scaling keeps black and white edges hard, which often suits barcodes on thermal printers; smooth scaling suits labels with photos or logos.
Your label is processed in your browser and is not uploaded to our server. PDF output is image-based: each page is rendered to pixels, so its text can no longer be selected. We cannot guarantee that a barcode will scan after any image change, so print a test label and scan it before you ship. Your carrier’s rules always take priority.