Usually when designing one might go to some trouble to choose an interesting main font to achieve some uniqueness for the job, but the temptation once one starts setting swathes of type can be to fall into a rut of using and reusing the same, favourite fonts, e.g. gill sans, palatino, frutiger etc.
But Google do a huge range of (mostly beatutiful) free to use, free to share open source fonts, most with many weights, many of which look very similar to some classic ones but are subtly different. So using Google's 'Lato' instead of 'Gill Sans' or 'Nunito' instead of 'Futura' will give your text a fresh look. Plus, should your printer ask you to supply the font you can simply direct them to Google's page to download them with no need skirt the law.
Fint them here https://fonts.google.com/
