White space above Staff

[John Wiedenhoeft]

Dear all,

in order to include notation into PDF documents (without having to run 
lilypond-book everytime, and to create floating environments), I create 
a normal score and use pdfcrop to cut the white borders away. Left, 
right and bottom space is cut away correctly, but above the staff there 
is still white space left...

Are there any invisible characters/placeholders? How can I remove them?

Best regards,
John