vim-skim

Open Skim.app at current cursor position using a <Plug>(skim_here) mapping. For example

nnoremap <Leader>s <Plug>(skim_here)

It tries to find the corresponding PDF file automatically.

Also available as a command :SkimPDF [path/to/pdf], path optional.

Install

git clone https://github.com/lericson/vim-skim.git $HOME/.vim/pack/git-plugins/start/vim-skim

But Wait, There's More!

I also added an mvim-clever binary that you can set up as the binary to edit the open PDF file in Skim.app. It looks through the list of MacVim servers and tries to open the requested TeX file in a MacVim session that actually has the buffer loaded.