Lofesa commented on issue #1714: URL: https://github.com/apache/incubator-pagespeed-ngx/issues/1714#issuecomment-705491841
But in [Convert JPEG to WebP](https://www.modpagespeed.com/doc/reference-image-optimize#convert_jpeg_to_webp) it says "...With this filter enabled, GIF and PNG images can also be converted to **lossily**-encoded WebP if the configuration allows them to be converted to JPEG " I think the doc you cited is for convert png to jpg only, and jpg don´t allow transparency. And for recopreson quality you have some filters: https://www.modpagespeed.com/doc/reference-image-optimize#WebpAnimatedRecompressionQuality https://www.modpagespeed.com/doc/reference-image-optimize#WebpQualityForSaveData https://www.modpagespeed.com/doc/reference-image-optimize#WebpRecompressionQuality https://www.modpagespeed.com/doc/reference-image-optimize#WebpRecompressionQualityForSmallScreens ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
