Caption Font

Sets the font family for burn-in captions.

video-caption-font accepts a font family name as a string. The specified font is used to render all caption text burned into the video frames. It defaults to Helvetica.

It accepts the same names as the Video API’s txt-font parameter. Search those typefaces below — each result previews the face, with non-Latin writing systems shown as a specimen in their own script. A few faces cannot be previewed and are labelled instead; they still work on video.

The Video API and the Rendering API maintain separate font sets, so this is the list to check rather than assuming a name carries over. Both lists sit side by side on the Supported Fonts reference page.

Captions always render in the family’s Bold face.

Fonts you upload to your account also work here. See Custom Fonts.