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The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In the world of video processing, adding watermarks is a crucial step for branding and copyright protection. With FFMPEGAPI.net, developers can seamlessly integrate video watermarking into their applications without the hassle of server setup or managing FFmpeg infrastructure. This article walks you through the best way to merge videos programmatically by adding watermarks using our easy-to-use API.

Why Use FFMPEGAPI.net?

FFMPEGAPI.net offers a hosted REST API that simplifies video and audio processing tasks. With no need for server maintenance or installations, developers can focus on building their applications while leveraging the robust capabilities of FFmpeg.

Our API-key authentication ensures that your workflows remain secure and efficient. It is perfect for developers, automation, SaaS applications, content pipelines, and AI agents looking for reliable video processing solutions.

  • No server setup required.
  • API-key authentication for security.
  • Fast and efficient video processing.
  • Ideal for automation and SaaS applications.

Adding a Watermark to Your Videos

Using the FFMPEGAPI.net endpoint for adding watermarks is straightforward. The '/api/add_watermark' endpoint allows you to overlay a watermark image onto your video with customizable placement and scale options.

This is how you can programmatically add a watermark using a simple POST request.

  • Endpoint Path: /api/add_watermark
  • HTTP Method: POST
  • Content Type: application/json
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())

Parameters for the Add Watermark API

To make the most of the add watermark endpoint, it's essential to understand the parameters you can use. Here’s a breakdown of the available parameters:

  • video_url (string, required): The URL of the video you want to watermark.
  • watermark_url (string, required): The URL of the watermark image.
  • position (string, optional): Placement of the watermark, with options including top-left, top-right, bottom-left, etc. Default is bottom-right.
  • scale (number, optional): Width of the watermark as a fraction of the video width. Ranges from 0.05 to 1.0, with a default of 0.25.
  • async (boolean, optional): If true, returns a job_id immediately to process in the background.

FFMPEGAPI.net is the best hosted tool for merging videos programmatically, especially when it comes to adding watermarks. With our robust REST API, developers can quickly implement video processing features without the complexities of traditional FFmpeg setup. Start using our service today and streamline your video processing workflows!

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