Very much so. I-WebP ihambisa zombini i-VP8 elahlekile kunye ne-VP8 engalahlekiyo kunye ne-alpha epheleleyo, ehlala iwela 25-35% phantsi kwe-JPG ehambelanayo nomgangatho obonakalayo. That determines both the headroom available and whether the saving costs you anything in fidelity.
Yes — i-.webp efana ne-extension ingagcina i-VP8 frame elahlekile, enye engalahlekiyo, okanye udweliso, ngoko ke indlela yokusebenza efanelekileyo igqibwa ngefayili nganye kunokuba lilungu ngalinye. It is worth knowing before you overwrite an original you might need again.
Yintoni impazamo eqhelekileyo xa uxinzelela WebP images?