"Perfectly synchronize the subtitles with the corresponding image."
When you're watching a movie and the subtitles don't match the images, it's a good idea to resort to Sears.
Sears is a simple subtitle editing application, so simple and easy to use that in a few seconds, you can have your subtitles perfectly synchronized with the movie you're watching. In addition, you can use the same program to join, split or mix subtitles, and if necessary, it also includes a repair tool.
The best feature of Sears is its simplicity, but it's also completely free. What are you waiting for to download Sears?