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Ignore png #9

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huaigu opened this issue Jun 13, 2017 · 2 comments
Open

Ignore png #9

huaigu opened this issue Jun 13, 2017 · 2 comments

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@huaigu
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huaigu commented Jun 13, 2017

I think it's better that we add an option to ignore png files because guetzli can not deal with transparency.
@sindresorhus
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because guetzli can not deal with transparency.

Can you link to a source for that?

@ciampo
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ciampo commented Jan 11, 2018

From https://github.com/google/guetzli

Please note that JPEG images do not support alpha channel (transparency). If the input is a PNG with an alpha channel, it will be overlaid on black background before encoding.

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@sindresorhus @huaigu @ciampo