There are several free tools you can use to make all the possible info product you want to.
For e-books:
- Sigil is an open-source editing software for e-books in the EPUB format. This is especially useful if you wish to make Kindle book
- Scribus is a page layout program for Linux, FreeBSD, PC-BSD, NetBSD, OpenBSD, Solaris, OpenIndiana, Debian GNU/Hurd, Mac OS X, OS/2 Warp 4, eComStation, Haiku and Windows.
- Canva is graphic-design tool website that uses a drag-and-drop format to make e-books among other things like posters, greeting cards. It's free to use after a sign-up
For photo editing
- Gimp is an open-source photo editing software; whether you are a graphic designer, photographer, illustrator, or scientist, GIMP provides you with sophisticated tools to get your job done.
- Inkscape is professional vector graphics editor for Windows, Mac OS X and Linux.
For video editing
- OpenShot is free, open-source video editor for Linux, Mac, and Windows. Easily cut, slice, and edit any video or film
- ShotCut is free, open source, cross-platform video editor for Windows, Mac and Linux. Major features include support for a wide range of formats; no import required meaning native timeline editing; Blackmagic Design support for input and preview monitoring; and resolution support to 4k.
- Open Broadcaster System: free, open source video recording and live streaming. This is what YouTuber's use.
- Bandicam: lightweight screen recorder for Windows that can capture anything on your PC screen as high-quality video.This is not free or open-source; single PC license is at $39
