However, some security experts have found out that this tool should be categorized as a PUP (potentially unwanted program) and adware due to the frequent ad display it causes. YTD Video Downloader, developed by GreenTree applications, is software that offers downloading videos from the Internet sphere for free. YTD Video Downloader - a third-party tool that offers to download videos from the Internet for free What is YTD Video Downloader? YTD Video Downloader is a questionable tool that has earned the name of adware due to annoying ads it provides