Dumb PDF question

Soldato
Joined
12 May 2011
Posts
6,274
Location
Southampton
I spend a lot of my working day looking at PDFs that are say 1MB to 20MB big of drawings prepared in CAD. My work laptop is pretty meh but even so I don't understand how a 20mb PDF can take several seconds to load, and it will do it in chunks or by layers as I pan and zoom with the PDF saved on some kind of SSD? Feel free to use up 20MB of RAM and or 20MB of VRAM and just display everything at once!

What's the science / magic behind PDFs?
 
Back
Top Bottom