PDF files are useful for sharing text, images, and more in a document. But unlike Word Docs and other text-based files, it’s not always obvious how to highlight in a PDF. Luckily, the instructions in this article will show you how to add and remove highlighting, as well as change the color of your highlighter.

While there's not much you can do to edit a PDF file in Adobe Acrobat Reader, you can highlight text for later reference.

Open your PDF in Acrobat Reader.

Select the pen icon in the toolbar at the top of the screen.