I'm looking for an app that allows one to select a range of photos and turn them into a single, multi-page PDF. Is there such a thing? I've already paid for a few PDF converter apps but none actually do this. What they do is allow you to turn a single photo into a PDF. Or, in another case, they make you choose the photos one by one. If you want to turn 30+ photos into a single PDF, that becomes a tremendous pain. Would greatly appreciate input on such an app. Thanks!