I’ve seen lots of tutorials online explaining how to convert iOS HEIC files to JPEGs but I can’t seem to find any easy way to bulk convert existing JPEG photos to HEIC?
The reason being is I really like HEIC as a storage format: It easily makes image file sizes 5x to 10x smaller than JPEG equivalents which not only saves space but makes syncing the library to other devices quicker as well.
So I would like to convert all past images in my macOS Photo library to HEIC two take advantage of these benefits. Do any such tools exist? I would like to avoid a bulk export, conversion via non-Photos tools and then reimport because that seems messy.