A Print Setup records the complete physical path that produces the final paper or stencil. It is optional: No Print Setup always remains available.
On Android, after a TatMapper-labelled print job, the app records only details the platform exposes for that app-owned job: paper, orientation, resolution, colour, duplex, margins, copies, and opaque printer/service identifiers. Unavailable details remain explicitly unavailable; TatMapper does not invent a printer name or enumerate unrelated print history.
Corrections are derived independently:
X = 100 / measured horizontal millimetres
Y = 100 / measured vertical millimetres
They apply exactly once at PDF export and never alter project geometry. Technical changes require reverification; renaming or notes-only edits do not.