Cidfont F1 F2 F3 F4 F5 F6 Full Official

You're referring to the CidFont F series, which are a set of fonts used for rendering Chinese, Japanese, and Korean (CJK) characters. Here's a review of CidFont F1, F2, F3, F4, F5, and F6:

Rating: 4.5/5

CJK fonts!