---
description: Add a custom image watermark to RealtimeKit recordings with configurable position and size.
title: Add Watermark
image: https://developers.cloudflare.com/og-docs.png
---

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# Add Watermark

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/realtime/realtimekit/recording-guide/add-watermark/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

RealtimeKit's watermark feature enables you to include an image as a watermark in your recording. To add watermark, configure the following parameters to video\_config in the [Start Recording API](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/api/resources/realtime%5Fkit/subresources/recordings/methods/start%5Frecordings/).

| **Parameter** | **Description**                                                                                                                                                                |
| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| URL           | Specify the URL of the watermark image                                                                                                                                         |
| Position      | Specify the placement of the watermark, you have the flexibility to choose between left top, right top, left bottom, or right bottom. The default position is set to left top. |
| Size          | Specify the height and width of the watermark in pixels.                                                                                                                       |

```json
{
  "video_config": {
    "watermark": {
      "url": "https://test.io/images/client-logos-6.webp",
      "position": "left top",
      "size": {
        "height": 20,
        "width": 100
      }
    }
  }
}
```

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