http://wolke23.at

Todays short post describes how to enable inverse search in a typical LaTeX workflow on OS X. That means, that by clicking somewhere on the pdflatex/xelatex generated PDF, MacVim will be opened or brought to foreground, and the cursor jumps to the corresponding location in the LaTeX file. Although usage of the following components ...

To adjust the font size in XeTeX add the Scale option as shown below:
\setsansfont{Helvetica}