Review the list of fonts. Look for fonts labeled as or those with "F1", "F2", or "F3" in the string.
(Character ID-keyed fonts) are designed to handle thousands of characters, unlike standard Type 1 fonts which are limited to 256. They map characters directly to a CID, rather than a character name.
Searching for these downloads often leads to malicious "driver update" sites or "font archive" scams. How to Fix "Missing CID Font" Issues Cid Font F1 F2 F3 Download
and higher typically represent other weights or styles (Italic, Light, etc.) of the same font family. How to Fix It
: Use the search terms "CID Font F1 F2 F3 download" or specify the language (e.g., "Chinese CID fonts"). This should help narrow down the results to fonts that are relevant to your needs. Review the list of fonts
Two historically notable CID fonts— MOEKai-Regular and MOESung-Regular —remain available for educational and legacy use. These can be accessed via FTP resources originally documented in O’Reilly publications.
is often Arial (Regular) or Times New Roman (Bold) . They map characters directly to a CID, rather
虽然你不能下载一个叫“CID Font F1”的文件，但你可以下载各种真正的、高质量的 CID 字体。以下是几个最可靠的下载途径：
Open Creative Cloud -> Go to Fonts -> Search for CJK font packs (e.g., Adobe-Japan1, Adobe-GB1, Adobe-CNS1, Adobe-Korea1) [2]. 2. Download from Printer Manufacturer
When a PDF is exported, the software may rename the embedded font subsets to "CIDFont+F1," "F2," etc., where the "F" designations often represent different weights or styles (e.g., F1 for Bold, F2 for Regular).
If you need help identifying the exact typeface causing your issue, let me know: What you are using (Windows, macOS, etc.)? Which PDF reader is showing the error?