ssa subtitles files to the video and output as Hardcodec Subtitles or Soft Subtitle (only for MP4 and MOV) for playback. The subtitles can also be added to DVDs, music videos, TV series, and other digital movies. You can also edit the subtitle with changing font, color, size, width, transparency, position, and others.
Wondershare UniConverter for Mac allows you to add subtitles to videos on Mac.
