This article explains how to highlight text in the Pages app on a Mac. It also explains how to take notes after you highlight something.
How to Highlight Text in Mac Pages
Pages lets you highlight text so that a specific section stands out from the rest of the document. You can choose from a number of different highlight colors, and each editor can be assigned a different color when collaborating. Once a section of text is highlighted, you can also add a note to remind yourself why you highlighted it, or to provide comments, context, or other information to a collaborator.
Here's how to highlight in Pages on a Mac:
Open a Pages text document.