When you print a TCAD drawing,you can set some parameters for it.it's very useful for your drawing become more perfect.you can set page's foot,head,heigth,width,orientation,style,margin and whether print border,background for tcad.

you can find prolific properties inspector.

PageFoot,PageFootAlignment,PageFootFont,PageFootToBottom,PageHead,PageHeadAlignment,PageHeadFont,PageHeadToTop,PageHeigth
Also,you can set this property value in code.
Code example:

procedure TMainFrm.Button1Click(Sender: TObject); 
begin 
  MyCAD1.PageFoot:='tcad drawing example'; 
  MyCAD1.PrintABorder:=true; 
  //... 
end;