In the Comment tab, select a type of text markup. Then click and drag from the beginning of the text you want to mark up.
Tip: After adding text markups with the Highlight, Underline, Strikeout, Squiggly Underline, or Replace Text tool, you can still drag the handle at the beginning or end of the text to adjust the text range you have selected. To copy the marked text, please do one of the following: