Is there a setting to enable Irfanview to open a large imaze to fit your desktop? It's annoying browsing through an SD card and having to manually resize them so you can see what the photo looks like.
If you maximize the IrfanView window, the first option (
If you keep IrfanView windowed, then the second option will only rescale images that are larger than the IrfanView window. Images that are smaller will display at their native resolution.