Highlight, Underline, and Strikeout Tools
The Highlighter toolset includes highlight, underline, and strikeout tools. Those three tools deal with the text of the original document directly. This will only work on documents where the text can be selected by long-tapping.
All three tools have the same attribute that can be changed – color. Once you activate these tools, the icon will change to the current available color. To change the color, tap on the tool icon after you activate it.
Editing text markup annotations
After the Text Markup toolset has been dismissed, you may tap the annotation to change the color, delete, or start a conversation.