䀀䀀䀀ᜀᜀᜀ⤀⤀⤀ This is the hallmark of an . The screen renderer guessed the shape correctly, but the ToUnicode CMap (needed for copy/paste) is broken or points to the wrong CID range. Part 6: How to Resolve “Missing CID Font F1 Family” Errors If you encounter an error like:
A: The original font license was likely restricted. The PDF creator tool substituted the F1 fallback to avoid legal distribution of a commercial font. cid font f1 family
/CIDFont/F1Family /NotoSansCJK-Regular ; If a PDF editor strips out font subsets to reduce file size (often called "downsampling" or "font optimization"), it may rename the remaining font dictionary to F1 Family because the original metadata is lost. Part 4: Technical Properties of the F1 Family From a forensic data perspective, the CID Font F1 Family has specific, predictable properties. If you are writing a parser or analyzing a PDF with pdf-parser.py or qpdf , look for these attributes: 䀀䀀䀀ᜀᜀᜀ⤀⤀⤀ This is the hallmark of an