It doesn't work with webp at all
Destroy666 said, on 16/03/2024
https://jumpshare.com/s/D8u9Uzu6dVauSBfiruAi
pingo -lossless test.webp
There is "not found, not supported or already exists" on any webp that I attempted. Adding -webp arg changes nothing.
cédric (dev) said, on 18/03/2024
-lossless performs only on losslessly encoded WebP