You can directly link your printer to StarShipIT so that instead of a PDF being created the label will be sent straight to your printer.
You have to define a different printer for every kind of label you want to use i.e. Courier Post, New Zealand Post, Pace.
First you need to install the print node for Mac do this by selecting: Settings > Printing > Advanced > Add Print Settings
Select the service you want to set the printer up for.
Begin by selecting the Print method as Print Node (Mac Only)
You will see the Download Macs Print Node option appear.
Install and execute print node for Mac (https://www.printnode.com/docs/introduction/ )
When Print node is installed you will see a login window asking you for Username and Password .
Please enter the Username and the password provided on the printer page : in this example firstname.lastname@example.org and Password01
When you correctly login on print node the following icon will be displayed on your computer:
Refresh the print settings page and now in Select Printer drop down menu your printer should be displayed:
All the mapping between your printer and the different labels will be done on the print client.
Select your label printer and click on save settings.