I was working on a design in Adobe Illustrator and I've sent the `.ai` file to the printer. But she says that she don't have the fonts, that I used, installed on her computer. Now she also doesn't know how to install the fonts in her computer (I've tried to explain her but she just don't getting it). 

Now is there any way that I can preserve the font that I used in my design in Illustrator? That my `.ai` file can be opened on any computer without having the issue of "Font now found"?