Say, if I have generated a meta file and then use plrender to turn it into a postscript file, the plot is in landscape (aspect < 1), i.e., the bottom of the plot is to the right of the sheet and the plot occupies the entire page. 
Can I generate a portrait plot using plrender?  
When I try, all I get is the plot with the same aspect ratio but a lot smaller so that the bottom of the plot (the side that used to be 11.5") has been reduced in size to make it fit onto the width (8.5") of a letter size page. So, now, there is a lot of space at the top and bottom of the this clear? 
What I would like to be able to achieve is to end up with the plot in portrait but with an aspect ratio > 1, so that it occupies the entire page. 
I have tried many combinations of  " plrender -freeaspect  -a  and -ori "  but nothing seems to work. what am I missing something? 
Please help. 
Thanks in advance.