Key Takeaways
Settings -> Camera -> Formats -> Most Compatible
Settings → Apps -> Photos → Transfer to Mac or PC → Automatic (convert to jpg)
or
In "Shortcuts" app - select photo, convert to jpeg, save file:
That said, when I move photos from my phone to by desktop via Signal; somewhere along the way it gets converted to JPEG so it's not a concern.
JPEG is a compression method. Files with JPEG-compressed data are most likely to be in either JFIF or EXIF container formats. Both will almost always use the .jpg/.jpeg file extension.
I think converting HEIC into jpg would be simple vips copy -i src.hif out.jpg
Although I have not used it for a while so not sure it is exactly that.
sips -s format jpeg in.heic --out out.jpeg
also, a heic is just a container around an h265 image frame heif-dec foo.heic foo.jpgThey basically consume the libheif command line tool so you install that as a prerequisite.
Gwenview also opens them.
> cat ~/.local/share/kio/servicemenus/convertHEIF.desktop
[Desktop Entry]
Type=Service
MimeType=image/heif;
Actions=convertHEIF
[Desktop Action convertHEIF]
Name=Convert to JPEG
Icon=image-bmp
Exec=/bin/sh -c "heif-dec -q 95 %u $(dirname %u)/$(basename %u .heic).jpg"I’m referring to this: - select something in Photos, then Share. - tap “Options” under “1 photo selected” top of sheet.
There first choice there is:
Format:
Automatic
Current
Most Compatible
#!/usr/bin/env ruby
def run(extension)
files = `find . -type f -name "\*.# {extension}"`.split("\n")
files.each do |f|
jpg = f.sub(/\.#{extension}/i, '.jpg')
if !File.exist?(jpg)
cmd = "sips -s format jpeg '#{f}' --out '#{jpg}'"
`#{cmd}`
puts cmd
end
end
end
run("HEIC")
run("heic") magick mogrify -format JPG *.heic *.HEICConversions on the command line are simple enough with imagemagick. Prior to conversion, I use exiftool to rename the files from IMG_0123.HEIC to the date the image or video was taken, followed by a truncated sha256 digest of the file, e.g. 2025-12-22-1732-f8b7302.HEIC. Otherwise, you can get a nasty condition where the IMG_XXXX filenames collide when consolidated into the same directory.
https://caniuse.com/?search=HEIC
I mostly am a DSLR photographer but for the occasional iPhone shot
https://mastodon.social/@UP8/115740936297822037
I use Photoshop. (Where's Cindy when I need her?)
On the desktop, Preview app (and lots of others) will open and export as ...
On the phone (Apple, sometimes you bewilder me), You can convert in Files, not Photos. 1. Save a photo to FILES from camera roll or web (This works with webp, as well) 2. click and hold the THUMBNAIL, do not open the image. 3. Quick Actions -- Convert image. 4. You can now "save" the image (open, do not click and hold) to your camera roll.
This is BONKERS
As others have noted, "There's an app to do it".
Worst for me in daily life, when you get info on an image (in the camera roll, pull up on the image) WEBP does not even show as a file type. HEIC does.
ios 18, not 26.
[0] https://toolsfairy.com/tools/image-test/sample-heic-files
libheic on some old debian had troubles parsing recent metadata, PILLOW did not
Use it to convert customer images sent from iphones.
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