how to improve the resolution of generated eps file

I generate a dendrogram plot with a lot of leaf node. It become quite difficult to read the node label on the saved eps file. Is there a way to setup the page size during the saving process? Thus the resolution of the plot can be increased and the these labels can be readable.

Answer 1

[bym]

http://www.mathworks.com/matlabcentral/fileexchange/23629-exportfig would be the easiest way