Apple Preview is the most underrated Mac app. Here are 7 things you didn’t know you could do with it.

A guide spotlights seven overlooked Apple Preview features on Mac, from PDF editing to image tools.

Users can rearrange, merge, extract, password-protect, and redact PDFs without third-party apps.

Preview also supports dark-mode PDF viewing, background removal, clipboard image opening, and markup.

The takeaway: a free built-in macOS app can replace several common document and image utilities.