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How to add subtitle stream to iPhone MP4 video?

Apr 16, 2015 Posted by Karen Moore to Tips

In order to enjoy foreign film, we offen embed subtitles into video stream. However, the subtitles can not be turned off. It is a part of picture. If you would like to make the subtitle optional, I recommend you to save it as subtitle stream. Then you can turn on or off anytime as you like. How to add subtitle stream to videos and enjoy them on media devices, such as iPhone? With 4Media Video Converter Ultimate, you can easily add subtitle stream to videos and convert them to MP4 format for iPhone.

Firstly, free download and run this iPhone MP4 Converter.

Step 1: Add the original video you want to convert

Click "Add File(s)" button on the toolbar or select "File> Add File(s)" on the main menu to load files.

add subtitle to mp4

Step 2: Select iPhone profile

Select the files need to be converted and click "Profile" button to select iPhone-H.264 profile in the drop-down list. Then select Export to Device.

add subtitle to mp4

Step 3: Add SRT subtitle file

Choose the video you want to edit, and then click “Effects” button on the toolbar to enter “Effects” window. In “Subtitle” tab, click “Add Subtitles” button to load the desired subtitles into the list. Then select a subtitle from the list and adjust its transparency, vertical position, font, color, size, style and line spacing at will. After that, check "Save as subtitle stream" option and click Apply.

add subtitle to mp4

Step 4: Convert

After selected output profile, you only need to check the files you want to convert in the file list and click "Convert Checked Item(s)" button on the toolbar to complete the task.

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Just a few minutes, the original video will be converted to MP4 video with subtitle stream. When you play the video on your iPhone, you will be able to select On or OFF for subtitle. This tool also can help you convert other videos to MP4 format. Know more about 4Media Video Converter Ultimate.

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