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Enhance Your Videos with Text Overlay Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today’s digital landscape, adding captions to videos has become essential for enhancing viewer engagement and accessibility. With FFMPEGAPI.net, developers can effortlessly integrate text overlay captions into their video processing workflows using a simple hosted API. This tutorial will guide you through the process of utilizing the Text Overlay Captions feature, making it an ideal solution for automation, SaaS applications, and AI agents.

What is the Text Overlay Captions API?

The Text Overlay Captions API allows developers to render user-supplied text lines as timed overlays on videos. This feature is perfect for adding subtitles, annotations, or any text-based information to enhance the viewing experience.

By leveraging this API, you can customize aspects such as subtitle style, position, and duration, giving you complete control over how your captions appear.

  • Render text as timed overlays
  • Customize subtitle styles and positions
  • Ideal for automation and enhancing video content

How to Use the Text Overlay Captions API

To add text overlays, you need to make a POST request to the endpoint `/api/videos/add-text-overlay-captions`. The request requires a valid video URL and the text to overlay, along with optional parameters for customization.

  • Video URL: The source video where captions will be added.
  • Text: One or more caption lines.
  • Subtitle Style: Choose from various styles like plain-white, yellow-bg, etc.
  • Aspect Ratio: Specify the aspect ratio of the video.
  • Position: Set where the text will appear on the video.
  • Duration Per Line: Control how long each text line is displayed.
import requests

url = 'https://www.ffmpegapi.net/api/videos/add-text-overlay-captions'
data = {
    'video_url': 'https://example.com/video.mp4',
    'text': 'First line\nSecond line',
    'duration_per_line': 4
}
headers = {'Content-Type': 'application/json'}
response = requests.post(url, json=data, headers=headers)
print(response.json())

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out as the best hosted tool for video automation workflows. With no server setup or FFmpeg infrastructure management required, developers can focus on building and scaling their applications seamlessly.

The API-key authentication ensures secure access while facilitating smooth integration into your projects. Whether you are working on content pipelines, SaaS applications, or AI agents, FFMPEGAPI.net makes video processing easier and more efficient.

  • No server management needed
  • Secure API-key authentication
  • Ideal for automation and AI workflows
  • Comprehensive support for video processing needs

Adding text overlay captions to your videos has never been easier with FFMPEGAPI.net. By utilizing the Text Overlay Captions API, you can enhance your videos' accessibility and viewer engagement with minimal effort. Start integrating video automation tools for AI agents today by visiting https://www.ffmpegapi.net and experience the power of seamless video processing.

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