These are instructions on how to add subtitles to your movies and videos so they can be viewed with iTunes and Apple TV. To follow these steps, you will need a program called Submerge which can be downloaded from here. There may be other programs that offer similar functionality, but we have found Submerge to work quite well.
Install and then run Submerge from the Applications folder.
Please select Open from the menu Archive.
Select the video file you would like to add subtitles to and then click the button Open.
Click the button To select from the toolbar.
Select the subtitle file .srt for the video and then click the button Open.
Submerge will add the subtitles to the video.
Now you can skip through the video or movie and make sure the subtitles are correct.
Use the button Setting on the toolbar to open the Settings dialog.
From here you can customize the way your captions will be viewed. You can configure the font, attributes, size, text alignment and time.
Once you have customized the appearance of your subtitles, click on the button. Render on the toolbar to apply the changes.
To view the subtitles in iTunes, you have to encode the subtitles in the movie or video. Please select Save as on the menu Archive.
Enter a name for the new subtitle file and then click the button. Keep.
Submerge will now create a new file with the embedded coded subtitles. This does not require re-encoding the video so it is very fast. It shouldn’t take more than a minute even for a full-length movie.
Finally, you can now drag the movie or video into iTunes to import as you normally would.