[gcr]

If we're making breaking changes to PDFs, I'd love if the committee added a modern image format like JPEG-XL. In my experience, most disk usage of PDFs comes from images, not streams.

I keep a bunch of comics in PDF but JPEG-XL is by far the best way to enjoy them in terms of disk space.

[Bolwin]

Odd you should say that, as that's exactly what they've been discussing

[gcr]

No it's not. This article is about proposing Brotli as another possible '/Filter' for stream objects, like content streams (page drawing commands). Images are streams too, but unless you mean compressing raw pixel bytes in Brotli, there's no mention of a JPEG-XL or WEBP filter.

[NoahZuniga]

well, not mentioned in this specific article. But JPEG-XL support is something they're working on [1].

[1]: https://pdfa.org/wp-content/uploads/2025/10/PDFDays2025-Brea...

[gcr]

Oh cool!! TIL