A few final thoughts on .pdf-Notes, as I’ve used it some more:

– the flattened .pdf is definitely the way to go for grading because I can see them in the Dropbox folder, which allows a browse approach (tap on left and opens on right, similar to Mail or Gmail) rather than opening in .pdf-Notes which requires opening the document and cluttering the library

– but, the flattened .pdf only works with handwritten notes; any text boxes (sticky notes?) do not appear in the flattened .pdf and require opening in .pdf-Notes to see them (and they do appear automatically); so any students who filled it out with a textbox and saved as a flattened .pdf might as well not have; I still couldn’t see it in Dropbox