Originally Posted by InPhase277
I have the 2008 PDF and it's only 7 MB. Not sure why the bulk resources versions are over 100 MB!
Because the states scan the book so it's raster. It's a picture of the pages instead of the text of the pages.
But there's OCR text under the image so you can still copy and paste in most PDF readers.
Basically you see a picture of the page but if you copy and paste it's OCR.
Anyway yeah that's why they are so large.
Clutchcargo: Don't regret buying the book. It's nice to have even if you can get free copies.