If you’ve used OneNote for note taking or documentation creating, some times its just nice to have the screenshots/clippings as actual image files. Onenote has a feature builtin that will let you save these files as such.
1. Take a screenshot / clipping
(see that recipe here: http://www.tech-recipes.com/rx/2402/onenote_2007_insert_screen_clippings )
2. Once it opens up the Onenote note with the image clipping /screenshot, right-click on the image and choose the option to Save As.
3. Now browse to where you want to save it and name it and you should now have a PNG image file of that clipping/screenshot.