How to Highlight PDF with Preview on Mac. Step 1. Open your document in preview by pressing control-click and choosing "Open with Preview" or dragging and dropping the file into Preview. Step 2. Navigate to the top right corner. Click on the hig

When highlight mode is on, highlights appear when you select text. To change the highlight color or switch to strikethrough or underline, click next to the Hightlight button , then choose an option. To remove a highlight, Control-click the text, then choo

In the Preview app on your Mac, open the PDF you want to change.. Do any of the following: Quickly highlight, underline, or strike through text: Select text, click the down arrow next to the Highlight button , then choose a highlight color, underline, or