# fonts.customFonts.id

Part of [Fonts](https://kernstra.com/docs/web-sdk/config/fonts) in the Kernstra Web SDK 1.0.0 configuration reference.

- Type: `string`
- Required
- Page: https://kernstra.com/docs/web-sdk/config/fonts/customfonts-id

Unique font identifier.

Web page: https://kernstra.com/docs/web-sdk/config/fonts/customfonts-id