Known print out and PDF export issues and solutions …
1. Printed output does not properly fit onto the page or is too small, too crowded or margins are too wide.
The score was printed with Page Setup > Margins set to From Recognition. This means the printed image of music is exactly the same size as the scan itself, which is always smaller than a full-sized sheet of paper.
Go to Note Editor and Tools tab). In the Margins pull-down menu, select Center on Page.
Otherwise, simply push Fit to Page in Page Setup dialog. Your score will automatically resize to fit your default page type.
2. Systems roll over to new pages when they should remain in place.
Push Format Score to reformat yourself.