If you need real CID-keyed fonts for CJK text, here are trusted free sources (no piracy).
When a PDF is created (especially from legacy systems like Adobe InDesign, QuarkXPress, or older RIPs), the software sometimes assigns generic names to CID fonts embedded as subsets. Instead of showing the original font name (e.g., "HeiseiMin-W3"), the PDF’s internal structure labels them as F1, F2, F3, etc.
Here is the typical breakdown:
| Label | Typical Font Family | Script | Common Use Case | |-------|---------------------|--------|------------------| | F1 | HeiseiKakuGo-W5 (Japanese Gothic) | Japanese | Headlines, UI text | | F2 | HeiseiMin-W3 (Japanese Serif) | Japanese | Body text, novels | | F3 | KozGoPro-Regular | Japanese | Modern Gothic | | F4 | Ryumin-Light | Japanese | Traditional serif | | F5 | MS Gothic (or similar) | Japanese | Monospaced | | F6 | Adobe Ming Std L | Chinese | Serif body text | | F7 | Adobe Song Std L | Chinese | Song style serif |
Note: The exact mapping varies depending on the PDF creator. F1–F7 are not universal standards, but they are commonly reused across many documents. cid font f1 f2 f3 f4 f5 f6 f7 fonts free download link
These are commercial fonts. The fonts labeled "F1," "F2," etc., are typically owned by Beijing Founder Electronics (Founder Type). They are not free for commercial use.
If you’ve ever opened a PDF in Adobe Illustrator or Acrobat and seen a warning about missing CID fonts (specifically the F1 through F7 family), you know the frustration. Text turns into little "x" marks or disappears entirely.
But what exactly are these mystery fonts? And more importantly, where can you download them for free?
Let’s clear this up.
For those looking to download CID fonts F1, F2, F3, F4, F5, F6, and F7 for free, several resources are available online:
No “F1” download needed – you now have proper CID fonts.
Use these tools to peek inside a PDF and find the actual font name:
Once you have the real name (e.g., HeiseiKakuGo-W5), search for that font legally. If you need real CID-keyed fonts for CJK
CID (Character Identifier) fonts are a special format used primarily for large character sets—think Chinese, Japanese, and Korean (CJK) fonts. The F1, F2, F3 labels are not the actual font names. They are placeholder names assigned by software (like Adobe Acrobat) when the original font cannot be located.
In most cases:
Simply downloading a file named "F1.ttf" won't work. You need to identify the original font that your document is requesting.