Configure tex4ht for linked images

Question

I have a document that is to be compiled in PDF (using pdflatex) and XHTML (using tex4ht). For the XHTML version, I wish to have the images linking to their source in a new window (target="_blank").

Now, this is perfectly possible by some fiddling with \HCode, but I prefer not having to write this every time when I include a graphic in my TeX source.

Is there a \Configure command I can use in my tex4ht config file, so that an a-tag is wrapped around the resulting img-tag automatically?

Note: I noticed \Configure{IMG}, but I assume that's for generated images, + there is not clear "image source" variable I can use.

Answer 1

Based on tex4ht faq:

Create custom config file:

\Preamble{xhtml}
\Configure{graphics*}
        {png}
        {\Link[\csname Gin@base\endcsname .png target="_blank"]{}{}%  
           \Picture[pict]{\csname Gin@base\endcsname .png
              \space width="40px" height="40px" }%  
         \EndLink
         }
\begin{document}
\EndPreamble

compile with htlatex texfile customcfgfile