If you want to email a copy of a scrapbook page you've made or post it on a website, you can easily print the page to a graphics file. Just choose Print to Graphics File in the File menu.

You can specify the file format and the resolution. For pages with photos, JPEG is always the best bet, which is why it is the default option. If you're sending the file to someone else to print, set the resolution to a high setting. If you're posting the page to the web, use screen resolution to keep the file size smaller.