CID-keyed fonts (Character Identifier fonts) were developed by Adobe to solve the complexities of large character sets, particularly for East Asian languages like Chinese, Japanese, and Korean (CJK). Unlike standard name-keyed fonts that map characters to specific names, CID fonts use a numerical indexing system. In technical documents, PDFs, or CSS web stacks, labels like are often internal aliases or "font tags" used to reference specific font instances within a file’s resource dictionary. The Role of PostScript and PDF Encoding
In the context of printing and PDFs:
If you’re a developer or advanced user, you can also remap F1–F7 permanently using a (e.g., fonts.conf on Linux or registry edits on Windows). But for most people, installing the free CJK fonts above solves the problem instantly. cid font f1 f2 f3 f4 f5 f6 f7 fonts free download work
F1 … F7 are not standard font names (like Arial or Times). They are internal tags generated by PDF creators (e.g., Adobe Acrobat, LaTeX + dvipdfmx, or web PDF generators). Each F number is a font handle pointing to a CID-keyed font subset. F1, F2, F3, F4, F5, F6, and F7
# Identify real font names pdffonts document.pdf Outdated (Type 1 fonts no longer supported) Malware-infected
The fonts identified as (or simply F1–F7 ) are not specific brand-name fonts you can download from a website. Instead, they are generic internal aliases created by PDF creation software when fonts are embedded or encoded using a "Character Identifier" (CID) system . Why You Can't "Download" Them