# fonts.customFonts.ttfBytes

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

- Type: `Uint8Array`
- Page: https://kernstra.com/docs/web-sdk/config/fonts/customfonts-ttfbytes

Pre-loaded TTF bytes (skips the fetch). The only kind of custom font that works with `download: false`.

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