Noto Sans Yi is licensed under the SIL Open Font License (OFL). This license allows you to use, study, modify, and share the font freely. Here's a breakdown of what that means for how you can use the font:
1. **Use**: You can use Noto Sans Yi for personal, educational, and commercial projects without any cost. For instance, you can use it in your website design, in printed materials, or in software applications.
2. **Modify**: You can change the font to suit your needs. If you want to adjust the font's weight, style, or other characteristics, you can do so. However, if you modify the font and distribute it, you must rename it to avoid confusion with the original.
3. **Redistribute**: You can share the original or modified fonts with others. You can include the font in your project files, upload it to a website, or distribute it through any other medium.
4. **No Selling**: You can't sell the font by itself. However, you can include it in products that you sell, like a book or a software package.
5. **Credits**: When redistributing the font, you should include the original license and credits. This ensures that others know their rights regarding the font.
6. **Embedding**: You can embed the font in documents or web pages. This means you can include it in a PDF or use it in a website's CSS.
7. **No Endorsement**: Using the font doesn't mean the creators endorse your work. You can't imply that they support or are associated with your project.
In summary, Noto Sans Yi's SIL Open Font License lets you freely use, modify, and share the font for almost any purpose, provided you follow the rules about renaming modified versions, not selling the font alone, and including the original license and credits when redistributing.