# dvisvgm not working when called by htlatex

I'm trying to make tex4ht produve svg-pictures instead of the normal png ones. I'm working with MiKTeX 2.9 under Windows 10.

I tried the following tex-file (mwe.tex):

\documentclass{book}
\begin{document}
$$5x - y = 1$$
\end{document}


with the following config-file (myhtml.cfg):

\Preamble{html}
\Configure{Picture}{.svg}
\begin{document}
\EndPreamble


To get svg-images I tried putting

G.svg
Gdvisvgm -n -p %%2 -s %%1 > %%3


into the tex4ht.env as suggested here, and then running

htlatex mwe.tex "myhtml"


When the system call

dvisvgm -n -p 1 -s mwe.idv > mwe0x.svg


is made by htlatex, an error-window pops up, saying that dvisvgm.exe is not working anymore.

But the thing is, when I type 'dvisvgm -n -p 1 -s mwe.idv > mwe0x.svg' directly into the command window, it works just fine.

I also tried using make4ht as suggested here, which didnt work either: it produces an svg of size 0 Bytes.

• I would forget about using tex4ht.env. I use svg images with tex4ht. But generate them directly using pdf2svg during the build process. Example how to do this is here Detailed description of my tex4ht setup this is what I do now and it works very well for me. Dec 8, 2015 at 0:49
• Thanks for the suggestion. Did you do something different at the time you wrote your comment? (The document you provided a link to says it has been updated on July 1) Aug 13, 2016 at 18:58
• I tried to make it work today again, again without success. The problem still seems to be that when htlatex/make4ht call dvisvgm it doesn't work properly. Whether I used the standard Make:image("svg$","dvisvgm -n -p${page} -c 1.4,1.4 -s ${source} >${output}") your version with Make:add("dvisvgm","dvisvgm -v1 -n -c 1.15,1.15 -p 1- ${input}.idv") or even something using os.execute("dvisvgm -v7 -n -c 1.15,1.15 -p 1-${input}.idv") ... All the svg files are empty, if any are produced at all. The latter doesn't even print anything on the screen, despite the -v7 Aug 13, 2016 at 19:17
• I update these pages all the time. So I do not remember what I added or improved. But basically, if you follow the instructions on that page, you should get svg images of you graphics for use with tex4ht. You need to use the correct .cfg and correct main.mk4, these files are on the same page. You have to convert the graphics from pdf to svg first. All these instruction on the page above. Again, I do not use ex4ht.env at all any more. Aug 13, 2016 at 20:53
• On your web page it sounds like that's what you do for external images which are included via \includegraphics. I've been doing that as well, for example with externalized tikzpictures. My problem lies with the images of displayed math, arrays, matrices and so on. Have I misunderstood something? Aug 14, 2016 at 7:43

I uninstalled everything concerning tex and then tried the make4ht approach described here again, this time using a fresh installation of TeX Live. It works now. I probably messed something up in my previous MiKTeX installation.