There is invalid showing of sheet music Piascore Support February 01, 2018 15:35 Updated Follow Could you try below? Change file name and import it again Delete the file and import it again (caution : writing data will be deleted) Related articles Can I read on landscape view? How to transfer your music score files (PDF only) to Piascore. The message “Invalid PDF file” is shown How I can backup my edited files? How to edit title, composer Comments 0 comments Article is closed for comments.