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A comment on Why JPEGs Still Rule the Web After 30 Years (2024). Parent comment

Re:Why JPEGs Still Rule the Web After 30 Years (2024) by jbverschoor on Wednesday June 18, 2025 @12:09PM (#44311094)
JPG to JXL is lossless, and will save around 20%

JXL to JPG is lossless as in a bit-for-bit identical file can be generated

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Re:Why JPEGs Still Rule the Web After 30 Years (2024) by adgjlsfhk1 on Wednesday June 18, 2025 @02:18PM (#44312114)
> JXL to JPG is lossless

only if you got the JXL from JPG.

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