When the software creates this partial font, it frequently strips the original commercial name (such as Times New Roman or MS Gothic) and replaces it with a generic internal label like F1 , F2 , or F3 .
A separate index map (called a ) tells the computer which CID number matches a specific character code. Why Does My PDF Say "F1, F2, F3, F4, F5, F6, F7"?
When a PDF fails to display text labeled with F1 through F7 fonts properly, downloading a random font file from the internet rarely solves the problem. Because "F1" is an internal label, no single downloadable font exists under that exact name.
Best for: Direct compatibility with Adobe software. Adobe developed Source Han Sans and Source Han Serif specifically as open-source CID fonts. These are what professional PDFs expect. When the software creates this partial font, it
The original quest was for "high quality" fonts, and this is where CID technology truly shines, especially for professional printing and complex typography.
If you are trying to download these fonts, you likely fall into one of two categories:
A conversion from a program like Microsoft Word or a web browser to PDF failed to properly store the font data. Alternatives to "Downloading" CID Fonts When a PDF fails to display text labeled
I can then provide tailored steps to get your document reading perfectly. Share public link
When exporting to PDF from software like Adobe InDesign, Illustrator, or Microsoft Word, ensure your export preset is set to embed 100% of the font characters rather than creating subsets under 35% usage.
Do not look for "F1." Instead, look for the . Adobe developed Source Han Sans and Source Han
When the pack was released, designers worldwide downloaded the CID F1–F7 family. Small magazines used F6 to lend credibility to investigative pieces. Children’s authors brightened pages with F2. Poster artists revived F3’s theatrical flourishes. Typographers debated the hinting choices, and letterpress shops used the digital masters to cut new plates that fed old presses. The credit line—simple and respectful—began to show up in footers, on book colophons, and in gallery labels.
Press (Windows) or Cmd + D (Mac) to open Document Properties. Click on the Fonts tab.
How to Fix CID Font Errors (Without Downloading Shady Files)