[Q] TFM files headers

[Didier Verna]

  Hello,

I found information on the structure of Xerox PARC headers in .tfm
files. It seems, however, that other kinds of headers exist (for
instance, Adobe fonts such as pagk8y.tfm, as found in TeX Live).

Does anyone know where I can find information about the headers I may
encounter, their structure, and how to distinguish them?

Thanks!

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