Jpeg Xl Will Be Adopted as a New Image Format in Pdfs
Postedabout 2 months agoActiveabout 2 months ago
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The adoption of JPEG XL as a new image format in PDFs was announced, sparking interest and discussion among HN users about the implications and related resources.
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- 01Story posted
Nov 9, 2025 at 8:41 AM EST
about 2 months ago
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Nov 9, 2025 at 9:42 AM EST
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Nov 10, 2025 at 1:45 PM EST
about 2 months ago
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Related:
https://pdfa.org/dont-risk-losing-users-trust-future-proof-y...
https://pdfa.org/preparing-for-pdf-files-from-the-future/
https://pdfa.org/brotli-compression-coming-to-pdf/
What?
Edit: Do you mean "I am surprised Zstd didn't win"?
Brotli can compress more because of context modeling, about 5% more without the static dictionary and even more with it. Brotli works better with very short data.
Brotli is a bit more streamable than zstd, i.e., hides less data during transfer.
Zstd has better encoder implementations, but basically there is no technical difference in the demands of the format on the encoding algorithms. Compression could be equally fast, Zstd just saw more love and specialization for encoding. As a result, Zstd libs are 2x heavier than Brotli.