Preview can do more than just show you a file in macOS, as it is especially handy for annotating images and editing PDFs.

Sky This Week is brought to you in part by Celestron. Friday, February 20Once the waxing Moon sets this evening, its disappearance opens up a nice dark window for deep-sky viewing. Lying in far ...

Our step-by-step guide covers the many benefits, limited downsides, and everything else you need to know before embracing this popular privacy tool.