You can find a description with pictures in the User Manual of SongBook+ in the chapter "Add PDF and MP3 files to SongBook+ using iTunes".

>> Link to download the user manual

Here is a short summary:

  • Connect the iPad to your computer.
  • Start iTunes.
  • Select the small iPad icon in iTunes.
  • Select "File sharing" on the left side in iTunes.
  • Select the icon of SongBook.
  • Use the button "Add...", to add your documents.