Allow saving of zero quality JPEG images #4440
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The docs need updating too, at least the https://pillow.readthedocs.io/en/stable/handbook/image-file-formats.html#jpeg |
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And let's mention it in the release notes too. |
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Good catch, thanks. I've updated the documentation, and added release notes. |
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Thanks! |
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Resolves #4439
Since PIL, a JPEG quality of 0 has been used to indicate default quality. This PR changes that indicating value from 0 to -1, so that JPEG images of actual 0 quality can be produced.