Why do certain methods of sharing photos between devices result in a .HEIC file instead of a usable .JPG?

When I text myself a photo, or airdrop a photo to a friend, the file saves as an .HEIC file, which has far less utility than a .JPG file. What is the purpose of this?

MacBook Pro 16″, macOS 13.4

Posted on Nov 28, 2023 6:26 AM

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Posted on Nov 28, 2023 8:26 AM

jpeg is a very old compression system, and HEIC is newer and high efficiency (hence the HE). More and more systems are using it but, of course, only the newer ones.


In your iPhone's Settings>Camera>Formats, do have High Efficiency checked, or Most Compatible? As you might expect, "High Efficiency" means HEIC.

2 replies

Nov 28, 2023 8:42 AM in response to CammercialVideo

CammercialVideo wrote:

..... What is the purpose of this?

The purpose is to save storage and transmission time if you enable your iPhone or iPad to take the photos as HEIC files, they will need only half the amount of storage than the JPEG at the same quality. You are able to store twice as many images and the upload and download will be faster.

I have converted by now most of my older JPEGs to HEIC. And I am very glad, that Photos on macOS Sonoma finally makes it possible to export images as HEIC files. I do no longer need to make a detour to Preview to get the images converted to HEIC.


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Why do certain methods of sharing photos between devices result in a .HEIC file instead of a usable .JPG?

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