set(0,'DefaultFigureColor','w');
set(0,'DefaultFigureInvertHardcopy','off');
% set(0,'DefaultFigurePaperPosition',[-2,0.05,15.2,8.4])
set(0,'DefaultFigurePaperSize',[15.2,8.4])
set(0,'DefaultFigurePaperPositionMode','auto');
% set(0,'DefaultFigurePaperOrientation','landscape')
set(0,'DefaultTextInterpreter'
 
,'tex');
set(0,'DefaultFigureColor','w');
set(0,'DefaultFigureInvertHardcopy','off');
% set(0,'DefaultFigurePaperPosition',[-2,0.05,15.2,8.4])
set(0,'DefaultFigurePaperSize',[15.2,8.4])
set(0,'DefaultFigurePaperPositionMode','auto');
% set(0,'DefaultFigurePaperOrientation','landscape')
set(0,'DefaultTextInterpreter'
 
,'tex');

在startup中新增上述內容，

paperposition 用於調整eps檔案大小，圖片在整個圖中的位置，left bottom width height

Papersize 保證輸出pdf不被裁切，paperposition的前兩項對pdf也有效。

paperpositionmode 設定為auto，保證jpg等點陣圖輸出與實際視窗一樣

如果不在startup中新增，直接在程式裡調整也是一樣的，

set(gcf,'papersize',[15.2,8.4])

set(gcf,'paperposition',[-2,0.05,15.2,8.4])