yes please bring that back it worked fine for me [v3.5.1] and i just upgraded to 6.x today and that feature is missing so #aghast
AFIK apple using JP2, google likes WEBP so was using acorn for those conversions (among other things)
Update, i went to google and found they had (Catalina) command line tools* which aren’t ideal but good enough workaround for now. was hoping you might be able to specify what settings your legacy Acorn app was using so I can remain consistent with images I have already used it for.
*I chose the archive version that matched my current OS by searching the folder for the mac OS version and highest release number (not release candidate).
Note they are named libwebp-[RELEASE]-mac-[OS#] – you’ll get a zip full of command line utils/docs/source.
I didn’t install them just tried out the CWEBP command from the folder with/without each flag -lossless and -preset photo
Lossless made the file huge. Photo preset made it smaller than the Acorn version but seemed to me slightly less quality. Many flags and settings…