thanks Emanuele.
I am saving annotations in database. when i click delete it does remove the annotation from the database, but does not remove from the pdf page.
here it is:
1. i have rdpdfviewcontroller - it is responsible for opening pdf and other stuff... vannotremove is working if i click the highlight text then click delete (like in the demo)
2. now i have another view (tableview controller) which after creating annotation using rdpviewcontroller (pdf), the annotation is shown in this table view.
3. now, when i click the table view cell to delete the annotation, it does so in data base, and the cell contents is also removed, BUT the annotation itself in pdf is still there.
can you help emanuele,, if you need further explanation, please let me know.