If you want to embed a PDF so it appears on the page without clicking a link, this is for you. Very simple to setup.
Ease of use
Very simple setup, watch the Youtube video. Experiment with width / length, I use 800x800 px.
Unnecessary. Doesn't use Joomla updater is the negative. I didn't need support.
Watch the Youtube video. I don't know if there is documentation, but you won't need it.