How do I highlight something in a PDF on Mac?

In a Mac, to highlight text in a PDF, please open the file using Preview. First of all, just highlight that text, and press the icon of the highlighter in the toolbar. There is even an option to alter the highlight in color. If you’re searching for how to edit a PDF on Mac, this is one of the easiest things you can do. It serves to study or mark crucial data in a paper.