LMlmz·Jan 22, 2026
It's not even clear that they were the ones suggesting inclusion. They're just saying their library now supports the new thing.
https://pdfa.org/brotli-compression-coming-to-pdf/
> As of March 2025, the current development version of MuPDF now supports reading PDF files with Brotli compression. The source is available from github.com/ArtifexSoftware/mupdf, and will be included as an experimental feature in the upcoming 1.26.0 release.
> Similarly, the latest development version of Ghostscript can now read PDF files with Brotli compression. File creation functionality is underway. The next official Ghostscript release is scheduled for August this year, but the source is available now from github.com/ArtifexSoftware/Ghostpdl.
In ISO PDF spec is getting Brotli – ~20 % smaller documents with no quality loss