This is tutorial on Adding subtitle to a video clip and synchronizing it correctly. Shifting the subtitles correctly for out of sync subtitles. Adding subtitle to a video clip Lets say that the video clip is from a movie and we want to cut the subtitles from that portion of the movie and add it to this clip. The only problem is that the subtitles files are written in a continuous manner which makes it difficult to plain cut and paste operation of the relevant section. The steps involved are -- 1.Get the subtitle file. 2. Get the relevant portion of the subtitle file from the whole srt file and save it in another srt file. If for eg. we want know some words at the beginning and the end we can extract the text from the srt file using grep. Example file : The relevant section is in yellow. 1220 01:53:46,980 --> 01:53:48,140 Father-in-law! 1221 01:54:17,648 --> 01:54:23,780 I'm a foreigner , I came ...