[Zubersoft]

Go to the Setlists tab, long press a setlist, tap Share->Export files and select the output destination for the files. This will generate PDFs in the selected folder containing all of your annotations. You can create a setlist from a collection by long pressing the collection on the collections tap, tapping the three dots at the top right and selecting "Create Setlist from Songs".

As a side note, if you go to Settings->Backup and Restore->Backup Library, this will generate a .msb file contaiing your entire library and all settings. This is a far superior way to backup your library versus exporting individual songs.

Mike