Lofesa commented on issue #1720:
URL:
https://github.com/apache/incubator-pagespeed-ngx/issues/1720#issuecomment-739481777
From the docs:
Convert JPEG to WebP 🔗
This filter converts JPEG to **_lossily_**-encoded WebP
This filter converts JPEG to **_lossily_**-encoded WebP format if the
latter is supported by the browser (see list of browsers supporting WebP);
otherwise, this filter is ignored.
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
Convert to WebP lossless 🔗
This filter converts PNG and non-animated GIF images to
**_losslessly_**-encoded WebP if PageSpeed determines that the images are
sensitive to compression noise
Enabling and disabling convert_to_webp_lossless you get 2 diferents url, so
you get lossy and losseles images.
But the ooriginal png image have 22.9Kb in size, even if you reduce it to a
50%, still have 11.4Kb.
Download the optimized png, and change your original with the optimized,
then maybe you have a 2Kb webp image.
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