The problem with SuiteCRM is that the display language is the printing language. e.g. in AOS Invoices.
The printing language should be entirely different from the display language this because the employee is logged in in English but needs to print in German.
All the fields provided by DropDown boxes are then taken from the English texts instead of the German ones.
I assume it would be fairly easy to hide a tag in the template which indicates the printing language of the template.