Re: eqn sqrt and pdf?

[Tadziu Hoffmann]

> > yet: i'm not sure about what to be fixed.

You can also install an old version of Acrobat reader.
acroread 3 (you can find the rpm online) comes with the
original base 13 fonts (plus Zapf Dingbats), and you can
make fontconfig (assuming that's what zathura and evince
use) find those as well, in order to display PDFs that
do not embed the base 13 fonts.

Alternatively, try mupdf, which comes with the URW fonts
(the same as those provided with ghostscript), which are
compatible with the base 13 fonts (and although they have
different names, mupdf and ghostscript have builtin tables
to indicate which font replaces which).

Under Linux, you can also install acroread 9.5, which still
does the best PDF rendering.  (But instead of Helvetica it
comes with Arial, which doesn't look as nice.  You can,
however, merge the resources from acroread 3.)