2E 条款，可以使用 Apple 软件里内置的字体来显示和打印内容
"E. Fonts. Subject to the terms and conditions of this License, you may use the fonts included with the
Apple Software to display and print content while running the Apple Software; however, you may only
embed fonts in content if that is permitted by the embedding restrictions accompanying the font in
question. These embedding restrictions can be found in the Font Book/Preview/Show Font Info panel."