Use vim to pretty-print code with syntax highlighting 

vim +'hardcopy > output.ps' +q style.css

July 21, 2012 — bashoneliners

Explanation

If you have syntax highlighting properly setup in vim, this command will pretty-print the specified file with syntax highlighting to output.ps.

If you prefer PDF, you can convert using ps2pdf output.ps.

text-processing code-formatting
vim