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Important: USPS has shared that poor print quality or barcode placement near package edges or creases may cause packages to be flagged as unpaid or fraudulent. Always ensure barcodes are printed clearly and placed flat on the package surface. If your package was flagged by USPS as unpaid or fraudulent, see our updated FAQs for more detail on print quality, barcode placement, and label drop-off timing. |
Many different printers are compatible with Shippo. You can either use a standard inkjet printer, which prints on 8.5x11 inch pages, or you can use a thermal label printer (e.g., Dymo 4XL), which prints on 4x6 inch adhesive paper.
If you plan to ship quite a significant volume regularly, then we recommend investing in a thermal label printer, as it will increase the speed of your shipping process significantly.
The standard label format for inkjet printers is a horizontal letter (PDF) on 8.5x11 inch paper. On this paper, you can print a maximum of two labels per page (each label takes up half a page).
Labels printed via thermal label printer are usually in a vertical 4x6 inches format.
Changing your Label Setting
To change your Label Settings:
- Open the Settings tab and click Labels and Packing Slips.
From the Labels and Packing Slips Settings page, you can set printing, sizing, and service-level templates. Here you can choose:
Print Order
- Print labels and packing slips separately
- Collate labels and packing slips
- Single page label and packing slip
Label Format
- 8.5 x 11 PDF (one label per page)
- 8.5 x 11 PDF (two labels per page)
- 4 x 6 PDF
- 4 x 8 PDF
- 2.3 x 7.5 PDF
- 2.3 x 7.5 PNG
- A4 PDF
- A6 PDF
Packing Slip Format
- 8.4 x 11 PDF
- 4 x 6 PDF
- 4 x 6 PNG
- 4 x 6 ZPL II
- 4 x 8 PDF
- 4 x 8PNG
- 4 x 8 ZPL II
We recommend testing these sizes and seeing actual labels using test mode for a particular carrier.