video - How to add subtitles in other places

I've seen some videos where there are signs written in another language, and right next to the sign a subtitle has been added to explain what it says. So far I have only been able to add subtitles to the bottom of a video. How can I add subtitles to other areas of the video?

Answer

Advanced SubStation Alpha supports placing subtitles at any position, angle, size, and font.