Keep position of elements of the score when making other elements invisible.

I need to export one complete score to png and the same one with all the notes made invisible, but when I make the notes invisible the position of the barlines changes slightly and I'd need them to be in the exact same place. I wonder if there is a way for them to keep exactly the same place as when the notes are visible.
(I tried to just change the color of the notes to alpha 0, but ledger lines are not afected by that and they would be still visible).