Learn how to set your iPhone's Camera app to capture full 48MP resolution photos in the HEIF or JPEG format instead of 12MP or 24MP ones.
How to take 48MP photos on your iPhone
JPEG
How to convert HEIF images into JPEG format with Preview for Mac
iOS 11 and macOS High Sierra debuted HEIF, Apple's new efficient image format meant to supplant JPEG by delivering the same or better quality at half the file size. That's great, but what about converting your HEIF photos into the more compatible JPEG format?
How to convert HEIF images to JPEGs with iMazing HEIC Converter
As you might know, Apple with iOS 11 and macOS High Sierra introduced a new space-saving image file format, called High Efficiency Image File Format (HEIF).
How to make your iPhone shoot in JPEG instead of HEIF
Learn how to change the camera settings on your iPhone or iPad to take pictures in the universally compatible JPEG format instead of HEIF/HEIC.