
On Mac OS X, you can set up the default viewer for.

Use the Prefs | External viewer option to control this.

You can configure your favorite image editing program to automatically open each image when a scan completes. VueScan is designed to save scanned images to JPEG files (by default) or TIFF files (optionally).

If the colors don’t look quite right in the preview, try clicking with the right mouse button (with control key on Mac OS) on an area of the image that should be gray.
