How to Batch Convert Images Using macOS Preview

There are many third-party apps available for Mac that will batch convert images for you (Permute is one example). And then there's Preview, the powerful file viewer that's built into macOS. Preview will happily convert several images for you in one go. If you accidentally take lots of photos on your iPhone in Apple's HEIC format, for instance, you can use Preview on your Mac to quickly convert them to the more accessible JPEG format. In fact, what's not obvious to many users is that Preview is ...