Free tool / Shipping label PDFs
4×6 PDF Label Size Checker
Check the real dimensions, orientation and page count of a shipping-label PDF before you print. Your file stays in your browser.
Step 01 / Choose the PDF
Is your shipping label really 4 × 6 inches?
Some carriers provide a 4×6 label on a US Letter or A4 PDF page. This tool measures the document pages; it does not crop, change or upload your PDF.
Processing happens on your device. This page loads a PDF parsing library from a third-party content delivery network; PDF file bytes are not sent to that network by this tool.
Step 02 / Interpret the result
What should you do with the result?
If the file measures exactly 4×6 inches, set your printer's stock dimensions to match and start with Actual size or 100% when supported. If the PDF is Letter, A4 or another size, look for the shipping service's native thermal-label download.
Do not stretch a carrier barcode or crop out required quiet zones and routing information merely to force a label onto your paper.
Privacy and scope: The document is opened locally in your browser. The tool shows measured PDF page boxes and is not a shipping-label validation service or a substitute for carrier requirements. Password-protected, corrupted or unsupported PDFs may not be readable.