Subtitling on YouTube has become possible with the addition Subtitles For YouTube to Google Chrome browser that allows adding subtitle file through projected on a video, and this is also relying on some of the sites that offer subtitle files for movies that you want, and also the language you want.
First you need to add an application Subtitles For YouTube on Google Chrome browser via the following link : here
After adding the application, restart your browser and then later went to a movie on YouTube.
After that he had to go to some sites that give you a translation of the movies, and this model Location : here
Put the name of the movie in a rectangular search and you'll see the subtitle files, select the language you want and download this translation, and after you have downloaded drag the file with your mouse and drop it or put it the center of the video on YouTube, and you will see that the translation has been added to the film:
