[Gimp-user] dpi problem

[simon]

I recently created a A7(74mmx105mm) flyer using gimp and sent the image to a
print company who replied with:

The artwork you have sent is only 72dpi.  Therefore, too low resolution to
print from.  Ideally artwork should be 300dpi.

Here is the image:
http://www.imageox.com/image/354977-GetAttachm.jpeg

What do i need to do to get the higher dpi?

Any help would be most appreciated.
Thanks,
Si.



-- 
simon