Shrink to fit is, in my understanding, an application-level setting. Some copiers have a shrink to fit option, but it takes a literal picture and resizes it. That process does take some time and computing resources, and that copier is usually on the expensive side of the equation.
Shrink-to-fit is not the responsibility of the application, in the three most common operating systems: Windows, Mac, Linux. It's triggered by the printer driver. The print window, to the applications, is a fixed size. Scaling is done either by driver software or in the printer itself.
Shrink to fit is dead easy with printers using Adobe Postscript imagers.
It can be configured as a global setting. The application doesn't know it's being done. I speak as a developer of applications in Windows and Linux.
"The settings are set by a script." Depends on whether the script knows about all the setting. Because most goverment pukes use Windows, this could be a Registry setting that was overlooked by the script.
To know for sure, we would need more details on just what the script looks like.
Fat chance of that.
Your name got me for a moment.....
It looked to me at first glance .. as in clair
then realized it probably your name... A Sinclair.
Have a good day.