Hello Michal Karl advised to contact you about this issue. I didn't want to do it on April fool's day :) lest this email is simply put aside, but hey... this system is used worldwide so it doesn't apply.
If you were to have a simple document such as \documentclass{article} \usepackage[utf8]{inputenc} \title{Es así} \begin{document} \maketitle Sí o no \end{document} I ran the above with different conf files but the result was always the same with utf8 and \maketitle Of course, on the above example the most noticeable difference with other documents that exhibit the same problem, is the image itself , which in this case is cmr-10-10.png The only workaround was to have say \title{Es as\'i} find the files attached Thanks in advance for any pointers/solution Michal. pd I've been running it htlatex filename config mostly.... I don't know if a workaround directly through tex4ht and say the argument -utf8 is possible