# setStickerSetThumbnail

Source: https://core.telegram.org/bots/api#setstickersetthumbnail

[Documentation index](../llms.txt)

Use this method to set the thumbnail of a regular or mask sticker set. The format of the thumbnail file must match the format of the stickers in the set. Returns *True* on success.

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| name | String | Yes | Sticker set name |
| user\_id | Integer | Yes | User identifier of the sticker set owner |
| thumbnail | [InputFile](inputfile.md) or String | Optional | A **.WEBP** or **.PNG** image with the thumbnail, must be up to 128 kilobytes in size and have a width and height of exactly 100px, or a **.TGS** animation with a thumbnail up to 32 kilobytes in size (see [<https://core.telegram.org/stickers#animation-requirements>](../external/stickers.md#animation-requirements) for animated sticker technical requirements), or a **.WEBM** video with the thumbnail up to 32 kilobytes in size; see [<https://core.telegram.org/stickers#video-requirements>](../external/stickers.md#video-requirements) for video sticker technical requirements. Pass a *file\_id* as a String to send a file that already exists on the Telegram servers, pass an HTTP URL as a String for Telegram to get a file from the Internet, or upload a new one using multipart/form-data. [More information on Sending Files »](sending-files.md). Animated and video sticker set thumbnails can't be uploaded via HTTP URL. If omitted, then the thumbnail is dropped and the first sticker is used as the thumbnail. |
| format | String | Yes | Format of the thumbnail, must be one of “static” for a **.WEBP** or **.PNG** image, “animated” for a **.TGS** animation, or “video” for a **.WEBM** video |