mdbenito
commented
3 years ago https://github.com/texmacs/markdown/commit/622657ca587ee135b8f127783e551a9c37db9275 allows manually specifying an alternate image. It is cumbersome but gets the job done. I'm leaving this open because we may want a more automated approach
E.g. pdf or eps images. Either try to convert them (configurable), or in a first approximation just look for alternative formats in the same folder. The config option could be a switch between the three modes: fail, try alternative formats (in sequence), try to convert.
Alternatively add a tag to manually specify alternate formats for images