Comment by jchw

3 months ago

I don't think so: JPEG 2000, as far as I know, isn't generally supported for web use in web browsers, but it is supported in PDF.

9 comments

jchw

> I don't think so: JPEG 2000, as far as I know, isn't generally supported for web use in web browsers, but it is supported in PDF.

Safari supported JPEG 2000 since 2010 but removed support last year [1].

So Firefox (or others) can't open a pdf with a embedded jpeg-2000/XL? Or does pdf.js somehow support it?

lxgr 3 months ago

Seems like it: https://github.com/mozilla/pdf.js.openjpeg
This test renders correctly in Firefox, in any case: https://sources.debian.org/data/main/p/pdf2djvu/0.9.18.2-2/t...
jchw 3 months ago

Apparently I really flubbed my wording for this comment. I'm saying they do support it inside of PDF, just not elsewhere in the web platform.

JPEG-XL is recommended as the preferred format for HDR content for PDFs, so it’s more likely to be encountered:

bmicraft 3 months ago

I'm not convinced HDR PDFs will be a common thing anytime soon, even without this chicken and egg problem of support
jchw 3 months ago
What I mean to say is, I believe browsers do support JPEG 2000 in PDF, just not on the web.
- Zardoz84 3 months ago
  
  the last time that I check it, I find that I need to convert to Jpeg to show the image in browsers.
  
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