Task: On this Chapter 2 heading in this pdf file, I want to edit this pdf to underline this heading with yellow color to make a mark to continue from here, so underline the Chapter 2 heading with yellow color in the Adobe Acrobat app.
Steps:
Click on the Highlight tab to view the underline option.
Click on the underline option to underline the heading.
Swipe left on the Chapter 2 heading to underline this heading.
Click on the right tick icon at the top left corner of the screen to save the changes.