The font CIDFont+F1 is Arial (blod) and CIDFont+F2 is Arial (Regular) CIDFont+F1 issue - Adobe Community

The term font refers to an architecture developed by Adobe. It is designed to handle languages with massive character sets, such as Chinese, Japanese, and Korean (CJK), though it is also widely used in modern PDF generation for standard Western alphabets.

If the document displays correctly but won't print, try using a virtual PDF printer. This can sometimes re-encode the CID fonts into a more compatible format. Safety Warning

are simply "slots" (Folder 1, Folder 2, etc.) used by the software as placeholders.

stands for Character IDentifier . CID fonts are a specialized format developed by Adobe. They were designed primarily to handle the massive character sets required for East Asian languages—such as Japanese, Chinese, and Korean—which often require thousands of distinct glyphs.

Instead, these are assigned by PDF-creation software when it cannot properly embed or name the original font used in the document. What are CID Fonts?

CIDFont+F1 are not specific font brands you can typically download from a standard font website. Instead, they are generic placeholders created by software (like Adobe Acrobat or Microsoft Print to PDF) when it fails to properly embed or name the original fonts in a PDF document. Super User Understanding CIDFont F1, F2, F3 What they are

CID (Character ID) fonts are a type of composite font encoding developed by Adobe to handle large character sets, especially for East Asian languages like Chinese, Japanese, and Korean. Unlike standard fonts that use names for each character (glyph), CID fonts use a numerical system to map characters to a specific "collection". Cidfont+f3* Font - Google Groups

Review the list of fonts used in the document. Look for fonts labeled with or look for the ones causing the system error.

If you are the creator, ensure you are not using "compiled" fonts that are restricted to your local machine.