How to Add Subtitles to a Video. If you’re going to create a slideshow or greeting card video, you’ll probably want to include captions or title overlays that let you comment on what the viewer is seeing, in addition to images, videos, and music. Oct 17, · Add Subtitles to a Downloaded Video. How to. Change a File Extension. How to. Open XML. How to. Make a Zip File. How to. Select All. How to. Copy and Paste. How to. Print a Document. How to. Convert XML to Excel. How to. Copy and Paste a Link. Article Info. Much depends on exactly what videos you are looking to subtitle and for what purpose. If you are looking to post on YouTube or make a video with the titles burned in, and there are few security issues involved, look into a free service called Amar.