Cid Font F1 F2 F3: F4 [upd]

The PDF uses a custom CMap for F3 that doesn't map CIDs back to Unicode correctly. The visual glyph (what you see) is correct, but the internal text layer is code 0234 which your OS interprets as a Latin character. Solution: Use OCR (Optical Character Recognition) via Adobe Acrobat’s "Enhance Scans" tool to rebuild the text layer over the existing CID glyphs.

This abstraction allows the PDF to remain small and efficient. The actual font name (PostScript name) is stored one level deeper, inside the CIDFont dictionary. cid font f1 f2 f3 f4

We treat this as an error to be fixed. We reinstall the driver; we re-embed the font. We rush to cover the nakedness of the data. The PDF uses a custom CMap for F3

mutool show document.pdf /Resources/Font This abstraction allows the PDF to remain small

When software exports a PDF, it sometimes fails to embed the full font data. To keep the text readable, it assigns a generic CID (Character ID) name: Placeholder Names

Note: These mappings are arbitrary and can vary completely from one document to another. ⚠️ Common Issues & Solutions