Q: "What is the easiest way to add a hard subtitle to an mp4 video?" - From Quora
MP4 is one of the most popular formats. Some people loving to make videos often choose MP4 as the output format. Have you ever met the situation that your favorite MP4 movie has no subtitles? That may make you mad. Because subtitles can help people quickly know the contents of the videos. They are very important to some people with poor hearing or those who watch videos with a foreign language. Then, how to add subtitles (.SRT files) to MP4 Video video by yourself? You can find the answer in this article, which lists 3 video editors.
Part 1. Add Subtitles to MP4 by Joyoshare Video Joiner
Joyoshare Video Joiner is a professional tool to combine SRT files to MP4 video. Except for that, Joyoshare also allows you to add subtitles to videos with other formats, like MOV, M4V, AVI, MPG, etc. Before merging SRT and MP4, you can cut the unwanted parts of the MP4 files. Also, if necessary, you can edit the video, like rotate or crop the screen picture, adjust the brightness, contrast, saturation or hue, add some video effects and frames, insert background music to videos and watermark, and so on. After adding SRT files to MP4, then you can export it at 60X faster speed. Of course, you can also convert the MP4 file to any other popular video formats or extract the audios from it.
What makes Joyoshare outstanding from multiple subtitle editors:
Add subtitles to MP4
Support various subtitle formats, like SRT, ASS, SSA, IDX, SMI
Use Joyoshare without any skills
Offer 5 opportunities to use it before registering
Without the company logo in the trial version