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The text you provided, "cidfont f1 f2 f3 f4 f5 f6 full," typically part of a technical error message or log entry related to missing or incorrectly embedded fonts in PDF documents What This Message Means Font Subsetting:

pdffonts -subst yourfile.pdf

The "full" in our keyword cidfont f1 f2 f3 f4 f5 f6 full implies a desire for fully embedded (not subset) versions of all six synthetic fonts.

When does "full" occur?

  • Prepress Archival: When a printer requests "fonts fully embedded."
  • PDF/X Compliance: Some PDF/X standards require full font embedding.
  • Legacy RIPs: Raster Image Processors older than 2010 sometimes require full CIDFonts to process complex jobs without crashing.
cpdf -replace-fonts "CIDFont+F2" "NotoSansCJKjp-Bold" in.pdf -o out.pdf