Comment 12 for bug 489528

I think Clarke's first mockup (http://launchpadlibrarian.net/36515492/UI_proposal.png) is the best. It keeps the visual and easy-to-use slider and uses space very efficiently. I think we could just add the left and right buttons on the left at the same height at the slider. The replace existing pages button should be replaced with a dialog when a person tries to scan when there is already a document scanned that and alert like the one attached (it is just a screenshot from gedit, maybe change some of the words to be more suited to simple-scan?