It’s not possible in the free version of this app. Why not expand your horizon? Imagine you start working with Adobe PDF viewer on your Mac, and you need to edit the info in your tax return. The most obvious decision is to choose something well-known app like Adobe PDF viewer for Mac. However, please don’t rush to install, ‘cause it’s too easy to grab a misfit. If you start googling for free pdf viewer for Mac, you’ll definitely find lots of varieties. You’ve received a CV from a potential employee in PDF format or your prof has sent you an extremely useful article for your project, but you don’t have any PDF editor or viewer on your Mac. If that is the case, you should definitely try PDF Expert. However, you might need to do something more than open and view a PDF document.
The most apparent one is Preview, the pre-installed application on your Mac. There are multiple PDF readers on macOS that will easily open any PDF document.