There are several free or shareware download programs which will resize any image file (you have to find out how it does it, of course - it won't do it on its own!). I tend to use Adobe Photoshop, but the
free program I would thoroughly recommend is
Paint.Net - it does that job and many others brilliantly, and loads quickly as well. Did I mention that it is
FREE?
Go to:
http://www.getpaint.net/...and click on the link near the top right of the screen, marked:
Paint.NET v3.5.5 3.5 MBIgnore the bigger link marked: "Download Now". It's for a different application - AVS (though that may do the job you want done).
Paint.Net is much more like a top-end imaging application. And it does most of what most people want from Photoshop.
Hope this helps,
JN