All prebuilt tools ADD WATERMARK TO VIDEO API

Add a Watermark to Video

Overlay a logo or watermark image with controlled position, size and opacity. Run the preset directly on this page or call the same agent-ready endpoint from your product.

LIVE TOOL
Run add watermark to video
Paste a public media URL, choose your settings and download the result here.

The URL must be reachable without a login and remain available while the job runs.

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BEFORE / AFTER

See what the tool changes.

A visual guide to the transformation. Run the live form above to generate and download the real result from your own media.

BeforeClean source
No overlay
AfterBranded video
Ready
K
Logo · 85% opacity
BUILT FOR AUTOMATION

Useful defaults, typed options.

The tool slug stays stable while your agent supplies named media inputs and a narrow set of documented options.

  • Five placement presets
  • Adjustable width and opacity
  • Audio preserved
What this preset does
  1. 01Load the video and image
  2. 02Scale the watermark
  3. 03Apply opacity and safe margins
  4. 04Render a branded MP4
Stable endpointPOST /api/v1/tools/add-watermark-to-video
Live API request
{
  "inputs": [
    { "id": "main", "url": "https://example.com/video.mp4" },
    { "id": "watermark", "url": "https://example.com/logo.png" }
  ],
  "options": { "position": "bottom-right", "width": 240, "opacity": 0.85 }
}
Successful output example
{
  "result": {
    "output": {
      "filename": "add-watermark-to-video-output.mp4",
      "contentType": "video/mp4",
      "byteSize": 437021,
      "downloadUrl": "https://storage.googleapis.com/…"
    }
  }
}
CONSTRAINTS

Know the boundaries before you run.

Watermark width must be 16–2048 pixels.
Opacity must be between 0.05 and 1.
Use a decodable PNG, JPEG or WebP image URL.
FAQ

About add watermark

Which watermark image formats work?

Use a public image URL in a format FFmpeg can decode, such as PNG, JPEG or WebP.

Does the watermark replace the audio?

No. The original video audio is preserved while the image is composited over the video frames.

KEEP BUILDING

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