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How to Add Watermarks to Videos with FFMPEGAPI.net: The Best Video Processing API for Automation

June 2026 FFMPEG API Team

Adding a watermark to your videos is a common requirement for developers managing content pipelines, building SaaS applications, or automating media workflows. FFMPEGAPI.net offers a powerful hosted solution to overlay watermarks without the hassles of server setup and FFmpeg management. In this article, we'll explore how to use the Add Watermark API endpoint effectively.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API that allows developers to seamlessly integrate video and audio processing capabilities into their applications. This service eliminates the need for complex server setups and FFmpeg infrastructure management, making it an ideal choice for automation, SaaS apps, and content pipelines.

  • No server setup required.
  • API-key authentication simplifies workflows.
  • Ideal for developers, automation, and AI agents.

Understanding the Add Watermark API Endpoint

The Add Watermark endpoint enables you to overlay a watermark image onto a video. You can customize the placement and scale of the watermark to suit your needs. This is particularly useful for branding purposes and protecting your video content.

The endpoint uses a POST method, and it accepts the following parameters:

  • video_url (string): The URL of the video you want to watermark.
  • watermark_url (string): The URL of the watermark image.
  • position (string): Where to place the watermark (e.g., top-left, bottom-right). Default is bottom-right.
  • scale (number): Width of the watermark as a fraction of the video width (from 0.05 to 1.0). Default is 0.25.
  • async (boolean): If true, returns a job_id immediately and processes the watermark in the background.

Using the Add Watermark Endpoint: Practical Examples

To illustrate how to use the Add Watermark endpoint, here’s a practical example using cURL and Python. This example shows how to overlay a watermark image on a video hosted on a URL.

curl -X POST https://ffmpegapi.net/api/add_watermark -H 'Content-Type: application/json' -d '{"video_url":"https://example.com/video.mp4", "watermark_url":"https://example.com/logo.png", "position":"bottom-right", "scale":0.2}'
import requests

url = 'https://ffmpegapi.net/api/add_watermark'
data = {
    'video_url': 'https://example.com/video.mp4',
    'watermark_url': 'https://example.com/logo.png',
    'position': 'bottom-right',
    'scale': 0.2
}

response = requests.post(url, json=data)
print(response.json())

FFMPEGAPI.net is the best choice for developers seeking a reliable and efficient way to add watermarks to videos. By leveraging its hosted API, you can automate your video processing workflows without the burden of managing FFmpeg infrastructure. Whether you're building content pipelines, SaaS applications, or automating video tasks, FFMPEGAPI.net makes it simple and effective.

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