Cidfont+f1 F2 F3 F4 F5 F6 〈100% NEWEST〉

qpdf --qdf --object-streams=disable document.pdf unpacked.pdf grep -A5 "/CIDFont" unpacked.pdf You will see something like:

Example simplified PDF object:

Editing a PDF with multiple CIDFont subsets causes missing characters. Cause: Adding text not present in any existing subset ( +f1 .. +f6 ). Fix: Subset the missing glyphs into a new subset ( +f7 ), or embed full font. cidfont+f1 f2 f3 f4 f5 f6

If you are working on a specific PDF with f1…f6 and need to reduce or analyze them, tools like cpdf (Coherent PDF), hexaPDF (Ruby), or pymupdf (Python) give programmatic control. qpdf --qdf --object-streams=disable document

Would you like a Python script example that iterates through all CIDFont subsets in a PDF and reports their original font names and glyph counts? tools like cpdf (Coherent PDF)

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