ffmpeg supports both hard subtitles and soft subtitles.

• Hard Subtitles are subtitles that are hard coded to a video and are burned into the video and cannot be removed once they have been added.
• Soft Subtitles are not burned into a video. They can be enabled and disabled during the video playback. This gives users more flexibility and more control over how they want to watch the video.

Add multiple subtitles

Add subtitles from another file

Add subtitles from an ASS file

Add subtitles from a SRT file

Add subtitles to MP4 vs MKV

ASS file syntax

Change subtitle format

Check if ffmpeg supports manipulating subtitles

Convert a SRT subtitle file to ASS format

Extract hdmv pgs subtitles

Extract subtitles

List supported subtitle encoding formats

Preparing an SRT Subtitle file

Remove HTML from SRT Subtitle file

Styling the Subtitles