For using XnView to resize and compress at the same time, all I do is open XnView, then File>Open to open the image. Next I select Image>Resize. The only thing I enter is either the maximum allowed width or maximum allowed height (whichever ends up being the dimension which is the limiting factor). For standard 4:3 aspect ratio, I type 500 for the height in pixels, and the width is automatically calculated. If the image is 16:9 widescreen aspect ratio, I enter 720 for the width in pixels, and the height is automatically calculated. Then I click OK, then File>Save or Save As, and name the file whatever I want to (usually I just overwrite the original file).

I admit I do not understand the inner workings of what happens, but it seems that the compression intertwined with the resizing. I guess that is what XnView calls “Resample”.

By default settings, I mean that I did not change any of the settings before I began using the program. I left “Keep aspect ratio” checked and I left “Resample: Lanczos” which is how it was when I downloaded it. http://img206.imageshack.us/img206/9461/capture20080227ca3.th.jpg

Sorry if I did not explain any of this clearly enough. Let me know if you have any other questions, and I’ll do my best to help.