With the widespread adoption of the OpenType format, Adobe and other foundries have stopped supporting the direct use of CID-keyed fonts in modern operating systems and applications.
If your printer is choking on CID font errors (frequently happening with older office printers), your printer's memory cannot parse the complex CID glyph maps. You can bypass this entirely: Open the print menu in Adobe Reader ( or Cmd + P ). Click on the Advanced button at the top of the menu. Check the box that says Print As Image .
Scan the list. Look for the F1–F7 placeholders to see if their true system names (e.g., MS Gothic , SimSun , Heiti ) are listed next to them. With the widespread adoption of the OpenType format,
Because "F1" and "F2" are just generic labels, there is no single font file named "F1" that will fix your document. Websites offering these downloads are often distributing deceptive adware, spyware, or malware. How to Fix CID Font F1–F7 Display Issues Safely
Understanding CID Fonts (F1 to F7): The Complete Guide and Download Facts Click on the Advanced button at the top of the menu
In a PDF document, labels like are internal placeholders used to map a specific subset of characters to a font used by the creator. When you open a PDF in an editor like Adobe Illustrator and see these names, it means the software cannot identify the original font family (e.g., Arial, Times New Roman, or Helvetica) and has substituted them with these generic "CID" tags. How to Fix Missing CID Fonts
Choose (or use the Preflight tool in Acrobat Pro to "Flatten Transparency" and convert text to outlines). Look for the F1–F7 placeholders to see if
: "F1" through "F7" generally correspond to different weights or styles (e.g., Bold, Regular, Italic) of the original font used in the document.
If you just need to read or print a stubborn document quickly, bypass the font engine entirely. Open the PDF in Adobe Reader. Click > Print . Click the Advanced button. Check the box that says Print As Image . Click OK and print. 3. Re-Create the PDF (For Content Creators)
Restart the application. The generic F1–F7 labels will automatically map to the high-quality Asian glyphs. Method 2: Identify and Download the True Underlying Font