In this article, Mytour will guide you on how to highlight text in a PDF document using Adobe Reader DC, a free software from Adobe available for both Mac and PC. Alternatively, you can use the Preview application on Mac for the same purpose.
Steps
Using Adobe Reader DC

Open the PDF document in Adobe Reader. Click on the red Adobe Reader icon with a white A. Then, select File from the menu bar at the top of the screen, click Open..., choose the PDF file you want to edit, and click Open.
- If you don’t have Adobe Reader, you can download it for free from get.adobe.com/reader and use it on Windows, Mac, and Android operating systems.

Click on the highlight tool. The tool is represented by a marker icon located on the right side of the toolbar at the top of the page.

Move the cursor to the beginning of the text you want to highlight.

Click and hold, then drag the cursor across the text.

Release the mouse when finished. The text is now highlighted.

Click on File in the menu bar and select Save from the dropdown menu. This saves the highlighted document.
Using Preview on Mac

Open the PDF document in the Preview application. Double-click the blue Preview icon, which features two overlapping images. Select File from the menu bar and choose Open... from the dropdown menu. Pick the file from the dialog box and click Open.
- Preview is Apple's image viewer application, pre-installed on most versions of Mac OS.

Click on the highlight tool. The tool is represented by a marker icon located in the middle-right section of the toolbar at the top of the page.
- To change the highlight color, click the downward arrow next to the marker icon and select your preferred color.

Move the cursor to the beginning of the text you want to highlight.

Click and hold, then drag the cursor across the text.

Release the mouse when done. The text is now highlighted.

Click on the File button in the menu bar and select Save from the dropdown menu. This saves the highlighted document.
