Any pdf viewer with reflow feature?

[Mayuresh <mayuresh%acm.org@localhost>]

I normally use mupdf for most of the pdf viewing requirements. I am faced
with a need to view pdfs on a small screen. So looking for a pdf reflow
feature that wraps lines as we zoom in.

Preferably there should be a hot key to return to normal rendering so that
one can see the non reflowable material like figures quickly.

Should be either already in pkgsrc or compilable on NetBSD.

Please advise.

-- 
Mayuresh