How to get rid of annoying extra white spaces on the margins when exporting surface plots to pdf?

How to get rid of annoying extra white spaces on the margins when exporting surface plots to pdf, in spite of the use of exportgraphics already? I guess the extra white spaces are caused by the use of view([-25 50]), which changes the default viewpoint, but this line is required for my application.

Example code:

[X,Y,Z] = peaks;
surf(X, Y, Z);
view([-25 50]);  %%% This line is necessary, but seems resulting in extra white spaces on the margins
exportgraphics(gcf, 'mypdf.pdf');

[Matt J]

No atached image? How do you know we see the same thing?

[hmhuang]

@Matt J Added. Thanks!

[Catalytic]

Do you mean the extra blue at the fringe? I definitely don't see that.

[hmhuang]

@Catalytic I mean those white space between the blue fringe and the actual surface plot. The blue fringe means the image border when saving as a pdf file.

Answer 1

[Matt J]

Use export_fig instead,

https://github.com/altmany/export_fig

It will crop the borders by default.