Take the 2-minute tour ×   1. I was wondering as image formats,
what pdf (eps, ps) and djvu are classified into, raster image,
vector graphic image?   2. I think pdf (eps, ps) and djvu can
all contain both raster image and vector graphic image, so are
they hybrid image? share|improve this question  1 Answer 1  up
vote 1 down vote accepted  PDF's are largely comprised of vector
elements and AI treats them as vector (e.g., you can
open/edit/save). Yes, they can contain raster elements, but it
treats them as vectors and attempts to scale them as it does
embedded fonts and illustrations. Call it a hybrid if you will,
but the raster support is more a concession than original
intent.  share|improve this answer Thanks! How about djvu? – 
Tim Jun 11 '11 at 12:06 Sorry, not familiar with djvu, but from
the wikipedia page, it sounds like a pdf alternative, so the
same vector-style scaling should apply. –  hyperslug Jun 12 '11
at 23:18  Your Answer