PDF has extremely developed vector graphics support as well as adequate compressed image support (e.g. you can compress using a bunch of methods as good as what

PDF has extremely developed vector graphics support as well as adequate compressed image support (e.g. you can compress using a bunch of methods as good as what DJVU uses for your purpose, including PNG and JPEG2000.) AFAIK DJVU is a much simpler format primarily for scanned images, not vector graphics (which includes LaTeX-generated documents, mind you.) Could anyone with more knowledge about DJVU comment?