In many cases, CIDFont+F2 is actually the standard Arial (Regular) font that has been encoded or renamed during a PDF export.
If you absolutely need the original Chinese/Korean/Japanese CID font that some document calls "F2 Normal", contact the document’s author and ask for the embedded font export. Otherwise, the free, legal fonts listed above will render your document flawlessly. In many cases, CIDFont+F2 is actually the standard
Note on Legality & Safety:
Because F2 Normal is often a proprietary Adobe font, downloading it for free from third-party sites exists in a gray area. If you need it for commercial work, check your Adobe Creative Cloud license first (it may already be in your Fonts folder under a different name). Each character is identified by a unique CID number
If you are seeing "CIDFont+F2 missing" errors when opening a PDF, it usually means the viewing software cannot locate the original font (often Arial) that was renamed during the PDF creation process. Many users resolve this by manually substituting it with Arial Regular Myriad Pro in their editor. format for your computer? AI responses may include mistakes. Learn more CID+ Fonts - Adobe Community Note on Legality & Safety: Because F2 Normal
Missing Embeds: If your PDF viewer says this font is missing, it means the software that created the PDF didn't fully embed the font file, and your computer doesn't know which real font to use as a substitute. How to Fix "Missing CIDFont+F2" Errors