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Comment by 2DcAf

3 days ago

Thanks! I think most of the weight comes from the PNG diagrams, but I don’t actually know: I’ll put it on my to-do list to investigate, maybe there are some easy wins here.

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2DcAf

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maxerickson  3 days ago

The ~750 pngs are about 15 megabytes. The 77 photographic images are 22 megabytes.

Somewhat a death of 1000 cuts.

I used https://www.xpdfreader.com/pdfimages-man.html to extract them and take a look.

  • 2DcAf  3 days ago

    Thanks for that. At first glance, it looks like that is a good place to be, regarding images. I will still investigate when I find time.

    • maxerickson  3 days ago

      Probably the main thing you could look at is what pixel density you want in your images.

      For example, there's a 1 megabyte image of a tanker trailer that is displayed at about 1.5 x 3 inches, you could get rid of 3/4 of those pixels (going from ~400 ppi to ~200 ppi) and not really change the quality of the image for a casual reader.

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