[sdiy] OK, one of you computer geeks, explain this..

[ChristianH]

> I think that PDFs are hybrid documents (please correct, if I'm wrong)
> - that can contain (with lay-out information):  "text" (with font
> info), vector and bitmap graphics. (With compression or not?)
> 
> BYe, Samppa

Exactly. Add to that a page directory for immediate page access (without
having to read everything in between), you have the essence of PDF.

Christian