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Enhancing Your Videos with Text Overlay Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In the modern digital landscape, adding engaging text overlay captions to videos has become essential for content creators. Whether it's for accessibility or simply to enhance viewer experience, FFMPEGAPI.net offers a powerful solution to achieve this through a simple API endpoint. In this article, we will explore how to use the Text Overlay Captions feature of FFMPEGAPI.net effectively.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API that simplifies video and audio processing powered by FFmpeg. It eliminates the need for server setup or FFmpeg infrastructure management, making it an ideal choice for developers looking to integrate media processing capabilities into their applications.

  • No server management required.
  • API-key authentication ensures secure access.
  • Ideal for automation, SaaS apps, content pipelines, and AI agents.

Using the Text Overlay Captions Endpoint

The Text Overlay Captions endpoint allows you to render user-supplied text as timed captions overlaying a video. This feature is particularly useful for creating engaging content that communicates important messages to viewers. The endpoint can be accessed via a POST request to `/api/videos/add-text-overlay-captions`.

  • Method: POST
  • Path: /api/videos/add-text-overlay-captions
  • Content Type: application/json
import requests

url = 'https://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
}

response = requests.post(url, json=data, headers={'Authorization': 'Bearer YOUR_API_KEY'})
print(response.json())

Parameters for the Text Overlay Captions Endpoint

When using the Text Overlay Captions API, you need to provide various parameters to customize the captions according to your needs. Here's a breakdown of the required and optional parameters:

  • video_url (string, required): URL of the video to which captions will be added.
  • text (string, required): Caption lines separated by newlines.
  • subtitle_style (string, optional): Styles include plain-white, yellow-bg, pink-bg, blue-bg, or red-bg (default is plain-white).
  • aspect_ratio (string, optional): Choose from 16:9, 9:16, 4:3, or 3:4 (default is 9:16).
  • position (string, optional): Select the position of the text (top, center, bottom; default is center).
  • duration_per_line (integer, optional): Set duration for each text line (1 to 30 seconds; default is 5).

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net stands out as the leading solution for fast media processing APIs, especially in content pipelines. It allows developers to streamline their workflows without the hassle of managing complex server infrastructures. With easy-to-integrate endpoints and robust performance, it is tailored for those aiming to enhance their applications with video processing capabilities.

  • Quick and efficient video processing.
  • User-friendly API documentation.
  • Scalable to fit your development needs.

Integrating text overlay captions into your videos using FFMPEGAPI.net is straightforward and powerful. With its hosted REST API, you can elevate your video content and ensure that your messages are clearly communicated. Don't miss out on enhancing your viewer engagement—visit FFMPEGAPI.net today and start using the Text Overlay Captions feature!

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