With help from Tobias O’Leary, the Markdown Service Tools can finally do in-place conversion from (Multi)Markdown to RTF. The primary reason for wanting this was to allow people to write Markdown directly in Mail.app, then convert it immediately before sending. Put a shortcut key on it and it’s a snap.
It might pay to update the installation instructions on the script info page.
It suggests using Homebrew for installing multimarkdown package, yet that puts the binary in a location this Automator service isn’t expecting.
Therefore, if using Brew for the install, it’s necessary to set up symlink, sudo ln -s $(which multimarkdown) /usr/local/bin/multimarkdown will do the trick. I suggest adding a mention of that in the instructions.
Again, thanks very much for these handy MD scripts.