Download a CID-keyed OpenType font (supports large character sets). Recommended free options:
Often corresponds to Bold Italic or specific decorative variants. How to Fix "Missing CIDFont" Errors cidfont f1 f2 f3 f4 gratis
Ghostscript can substitute missing CIDFonts automatically. Install Ghostscript, then run: Download a CID-keyed OpenType font (supports large character
If you’ve ever extracted text from a PDF or tried to edit a file generated by old or unknown software, you may have stumbled upon a mysterious CIDFont reference: . These aren’t actual font names like Arial or Times New Roman. Instead, they are placeholders — internal tags used by the PDF’s font dictionary when the original font embedding is missing, corrupted, or deliberately stripped. Install Ghostscript, then run: If you’ve ever extracted
: If using Adobe Illustrator, import the PDF into a new document and use the Transparency Flattener to "create outlines." This converts the text into shapes so you don't need the font file at all. Impossible fonts to be found / Fontes impossíveis de achar
The fonts I listed are (free of charge) and open-source . However, if your original PDF expected a commercial font (e.g., a licensed Adobe CJK font), mapping to a free font may cause minor layout shifts or missing rare glyphs. For most text extraction and viewing, the free solution works perfectly.
For a long time, the Base 14 fonts were proprietary. However, Adobe released them as open source, making them (free of charge) and libre (free to use/distribute).