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A comment on LibGen's Bloat Problem. Parent comment

Re:LibGen's Bloat Problem by generationP on Monday August 22, 2022 @03:32AM (#32548421)
Ah. It says the encoding is ccitt, which I hope is indeed the same as Group4.

How is the lossless JBIG2 in terms of reading speed? I've seen some very well-compressed PDF files around that unfortunately load so slow that they are almost unreadable on mobile; I think this was JBIG2. In that case, I'm wondering if this can be avoided by proper use or is a necessary downside of the encoding.

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Re:LibGen's Bloat Problem by crazygringo on Tuesday August 23, 2022 @11:55AM (#32566791)
As fast as anything else for all practical purposes.

I too have encountered molasses-slow PDF's, and I can't even begin to guess what causes that. Book PDF's from OpenLibrary are often like that for me. Like it genuinely makes me wonder if it's producing each page's image with embedded JavaScript writing to a canvas or something... except that might actually still be faster.

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