Using rst2pdf.py to convert a small document with an embedded image fails, with a few LaTeX error messages:
Package typearea, 2004/09/16 v2.9t LaTeX2e KOMA package
Copyright (C) Frank Neukam, 1992-1994
Copyright (C) Markus Kohm, 1994-2002
Package typearea Warning: Bad DIV-value!
(typearea) You should decrease DIV, increase fontsize or
(typearea) change papersize.
A few of these:
! Illegal unit of measure (pt inserted).
Overfull \hbox (34.36905pt too wide) in paragraph at lines 166--167
It seems LaTeX does not degrade gracefully when things don't fit, unlike HTML which always finds a way.