# AddAssetPreviewImageInput > Input in domain **Assets** - HTML: [AddAssetPreviewImageInput.html](AddAssetPreviewImageInput.html) - Raw SDL: [AddAssetPreviewImageInput.sdl](AddAssetPreviewImageInput.sdl) - Covered by: [llms.txt](../llms.txt) ## Input fields - `assetId`: `ID!` — `Asset` Id. - `fileId`: `ID!` — `File` Id. Signed Id returned by `uploadFile` mutation.