There are a number of thumbnail utilities available, but Media
Resizer is certainly one of the more powerful and versatile
thumbnailers I've come across.

First, it has a very intuitive and cool interface. You won't
need to read a Help file or a manual to use it. You select the directory you
want to use as source files for your thumbnails. Then you select the look and
feel of your thumbnails. I'm not just talking about size. I'm talking about
features like automatic cropping, output formats, rotating, styles, shapes and
watermarks. Even creates thumbs from video files (AVI, MPG). Yep, Media
Resizer is very powerful and very fast.

You can use the Thumbnail Figuration screen to select the
shape of your thumbnails and even preview what they will look like. Extrude
them for a rich 3D look that will make your thumbs pop off the screen. Great
for making navigation buttons. The finished results are quite good as you can
see from the previewed samples above.
If you are looking for a tool to create thumbnails for your
web pages and applications, look no further. You've found nirvana in Media
Resizer. Click here
for more information.