There's an official plug-in in Jellyfin called "Subtitle Extract" that does it automatically for you. I personally use Bazarr instead, because I also want to d

There's an official plug-in in Jellyfin called "Subtitle Extract" that does it automatically for you. I personally use Bazarr instead, because I also want to download subtitles for different languages. In Bazarr, Embedded Subtitles is just another subtitle provider that can fetch subtitles depending on your rules.