Printing PDF on OSX

i am working in unity and i have a task of creating and then printing pdf from some of the snapshots taken through cameras in unity.

On windows after creating the pdf that can easily be done by calling the ShellExecute function and passing print as the parameter or using a function posted on stackoverflow i.e:

 private void SendToPrinter()
 {
     ProcessStartInfo info = new ProcessStartInfo();
     info.Verb = "print";
     info.FileName = @"c:\output.pdf";
     info.CreateNoWindow = true;
     info.WindowStyle = ProcessWindowStyle.Hidden;
 
     Process p = new Process();
     p.StartInfo = info;
     p.Start();
 
     p.WaitForInputIdle();
     System.Threading.Thread.Sleep(3000);
     if (false == p.CloseMainWindow())
         p.Kill();
 }

, but i have no clue at all how would i be able to achieve the same for the OSX build?

Any help will be really appreciated

Thanks