You won’t find a single package named because these are logical identifiers, not real font filenames. But by mapping each ID to a free, open-source alternative using a cidfmap configuration, you can fully replace them at zero cost.
: These are often generic names created by software (like third-party PDF generators) when they fail to embed or decode the original fonts correctly.
Export your documents using the PDF/A format archive standard, which strictly mandates that all font resources must be embedded directly within the file.
If the document uses Asian or technical character sets, Adobe provides free add-on packs to resolve this exact issue. Open your web browser. Search for the official . cidfont f1 f2 f3 f4 gratis
/CIDFont+F1 /NotoSansCJK-Regular ; /CIDFont+F2 /LiberationSans ; /CIDFont+F3 /DejaVuSerif ; /CIDFont+F4 /FreeMono ;
: If you’re processing PDFs that demand F1–F4, run pdffonts to see exactly which base fonts are missing, then alias accordingly.
The software warns that original fonts are missing and uses synthetic CIDFont substitutes. You won’t find a single package named because
: They handle fonts as "composite" rather than "simple," allowing for up to 65,535 separate characters instead of the standard 256.
If you have ever opened a PDF document and encountered missing text, strange symbols, or error messages mentioning , you are not alone. These alphanumeric codes are not actual commercial font names like Arial or Times New Roman. Instead, they are internal postscript font aliases used by PDF creation software.
If you simply want high-quality free fonts for your own designs to avoid these errors in the future, you can find 100% free commercial-use fonts at: CID+ Fonts - Adobe Community Export your documents using the PDF/A format archive
Sometimes opening the file in a standard viewer like macOS Preview and then using Export as PDF can re-encode the document and resolve the rendering errors. Note on Formula 1 Fonts Impossible fonts to be found / Fontes impossíveis de achar
When you see names like or CIDFont+F2 in a PDF's properties, it typically indicates one of two things:
: Open the problematic file in a viewer like macOS Preview and use the Export as PDF function. This often re-flattens the fonts and creates a usable file.
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If you only need to print the document, open it in Adobe Acrobat Reader (free) and choose . This bypasses font rendering entirely. Summary of Solutions Cannot see text Install Google Noto CJK fonts. PDF is for editing Use Illustrator to Outline Text . Only need to print Choose Print as Image in Acrobat. F1/F2 are missing Substitute with Arial/Times New Roman.