How is kerning encoded on embedded Adobe Type 1 fonts in PDF files?
Adobe PDF reference talks about /Widths array and /FontFile stream, but
Adobe Type 1 font programs (.pfb or .pfa files) don't include font
metrics; they are included in font metric files (.afm or .pfm files) but
these are not embedded in PDF file.
PDF can just encode char width metrics or it can encode kerning pair too?
How?
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