Shipping label sizes

Use this guide to learn how to use the Shippo API to create different label sizes for your application.

Setting your label format

Specify your preferred label format by setting the label_file_type parameter to one of the label tokens when calling the transaction endpoint to purchase your label. Each carrier supports different label size options. Refer to our carrier capabilities for carrier specific details. If you don’t set the label_file_type, the Shippo API will use the default format set in the Shippo dashboard.

cURL

curl --location --request POST 'https://api.goshippo.com/transactions' \
--header 'Authorization: ShippoToken <API_TOKEN>' \
--header 'Content-Type: application/json' \
--data-raw '{
  "rate": "a5c9d1bec93149f5bedc3a9374b50970",
  "async": false,
  "label_file_type": "PDF"
}'

Shipping label format sizes

Label type	Dimensions (imperial)	Dimensions (metric)	Token
2.3 x 7.5 inch PDF	2.3 x 7.5 inch	59 x 191 mm	`PDF_2.3x7.5`
2.3 x 7.5 inch PNG	2.3 x 7.5 inch	59 x 191 mm	`PNG_2.3x7.5`
4 x 8 inch PDF	4 x 8 inch	100 x 200 mm	`PDF_4x8`
4×6 inch PDF	4 x 6 inch	102 x 153 mm	`PDF_4x6`
8.5×11 inch PDF	8.5 x 11 inch	210 x 279 mm	`PDF`
A4 PDF	8.3 x 11.7 inch	210 x 297 mm	`PDF_A4`
A5 PDF	5.8 x 8.3 inch	148 x 210 mm	`PDF_A5`
A6 PDF	4.1 x 5.8 inch	105 x 148 mm	`PDF_A6`
ZPL II			`ZPLII`
PNG			`PNG`

Last modified on July 16, 2026

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Setting your label format

Shipping label format sizes

​Setting your label format

​Shipping label format sizes

Setting your label format

Shipping label format sizes