. Instead of searching for the specific "f4" version, you should look for the official Adobe CJK (Chinese, Japanese, Korean) support packs. How to Fix the Missing Cidfont-f4 Error
"CID" stands for Character Identifier . A CIDFont is a composite font format used by Adobe and other software to handle large character sets, such as Chinese, Japanese, or Korean (CJK).
If you're looking for more information on Cidfont-f4 or other fonts, here are some additional resources: