How to download subtitles for any video with IDM ? You need to open "Options->General" IDM dialog and press "Edit" near "Customize IDM Download panels..." . Then press "Add" ( arrow 1 on the image) and add SRT (or VTT ) file type ( arrow 2 on the image). After this play video again and IDM will add download option for subtitles on its video download panel . Please note that subtitles file may have some other file type, it depends on a video. Click Ok,Ok,Ok. Go to Youtube Enable Captions CC, Enjoy!
This is my personal blogger account where i write my words.