One of the best tools I've found for Joomla is the JCE Component. It allows you to extend the abilities of Joomla, including easily attaching PDF's, adding images, managing SEO, etc.
This one hour video takes you through a Hannush Web configuration of the JCE Editor. We will walk through the most important features and give you some tips along the way.
This is a must video for anyone just learning how to update sites using Joomla. This is for Joomla 3x
If you need the editor, you can find it at this URL...its easy to install and well worth the time.
https://www.joomlacontenteditor.net/downloads/editor/joomla-3
