Add Subtitles: for email

What changes in your video

Add subtitles to a video is meant to do one specific job, not to hide a long chain of automatic changes. Work from the original file and change only what you need. The tool can handle MP4, WebM, AVI, MOV, SRT where the browser and video engine support them, so the exact result still depends on the source video and the setting you choose.

Check the file before you keep it

Once the processing is complete, open the output and look at the actual file rather than assuming the setting name tells you everything. Check picture, sound, duration, orientation and format where they matter. If something is wrong, return to the original and change only the setting related to that problem before exporting again.

A straightforward way to use it

Start with the source video, choose the option that matches what you want to achieve, then run the processing and open the result. There is usually no benefit in changing several technical settings at once. If the first attempt is not right, go back to the source, adjust one relevant option and try again.

Formats and real-world compatibility

MP4, WebM, AVI, MOV, SRT are among the formats used by this tool, but an extension alone does not tell the whole story. Containers, video codecs, audio codecs, resolution and frame rate all affect compatibility. For an important file, test the finished video in the player, browser or service where it will actually be used.