I feel that I must be missing something here, but after I lock a pdf in DTTG (by clicking the padlock icon in its info panel) I am still able to call up the annotation toolbar through a long press on the pdf and then I am able to markup the pdf in various ways. The annotations then sync back to the Mac. I thought that locking an item prevented both deletion and modification?
As a second point, I am able to annotate the pdf without going into Edit mode. Is the Edit mode redundant for pdf items?
I am using the latest DTTG and latest iOS on an iPad Pro.