Why, oh why, doesn’t Adobe include the highlighter tool in Acrobat Reader? I understand the intent of the tool. For the person creating the document to highlight the important parts.
Perhaps though the people reading the document would like to highlight the important parts. For an off-computer example, students highlight parts of text books. So instead, I will have to copy the important parts to text file. This means I will probably use the text writer instead of Acrobat and only go to the PDF when I cannot find what I need.
BTW, in the remote chance someone from Adobe reads this (hey, it could happen), add the Notes tool to Acrobat Reader too!