I had the same problem, while the rendering quality of the equation was inadequate.
This is my procedure to fix this in MATLAB R2013b.
1) MATLAB :
edit publish
"publish.m". , . Linux .
2) 811. :
temptext = text('Parent',tempaxes,'Position',[.5 .5], ...
'HorizontalAlignment','center','FontSize',22, ...
'Interpreter','latex');
"Fontsize" ; 30.
3) 747. :
swapTexForImg(dom,equationNode,outputDir,fullFilename,equationText,newSize(2),newSize(1))
swapTexForImg(dom,equationNode,outputDir,fullFilename,equationText,newSize(2)/scale,newSize(1)/scale)
- . , , ; 2.
4) . .
5) MATLAB :
rehash toolboxcache
:
clear functions
6) .
PDF. HTML, . HTMl .