You can convert a JFIF file to JPG, though the two formats are nearly identical, and most software will open a JFIF file as a JPG. On a Mac, you need to rename the JFIF file extensions to JPG and then ...
You can AirDrop photos as a JPG by manually converting HEIC to JPG or always saving in the JPG format. You can disable HEIC using the Most Compatible option in Camera Settings. To AirDrop an ...