How to save multiple/all subtitle tracks?

In HD Video Converter Factory Pro and Free HD Video Converter Factory v 20.0, you can keep all subtitle tracks in one video.

1, You can add hard subtitles to any video.

2, You can add soft subtitles when converting videos to MKV, MP4 and MOV.

3, When converting videos to MKV, you can keep all subtitle tracks by choosing the Closed captioning mode, including image based subtitle (PGS, VobSub, etc.) tracks.

4, When converting videos to MP4 and MOV, you can keep all text based subtitle (SRT, ASS, etc.) tracks.

5, Double click one subtitle track to quickly select all subtitle tracks after you have selected the closed captioning option.