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t1disasm

disassemble PostScript Type 1 font

t1disasm [input [output]]

t1disasm disassembles Adobe Type 1 font programs in either PFA (hexadecimal) or PFB (binary) formats into human-readable form. If the file output is not specified output goes to the standard output. If the file input is not specified input comes from the standard input.

t1disasm performs eexec and charstring decryption as specified in the ``black book'', Adobe Type 1 Font Format. Additionally, the charstring binary tokens are expanded into human-readable text form, using the names given in the black book and later documents describing Type 2 opcodes.

% t1disasm Utopia-Regular.pfb Utopia-Regular.raw % t1disasm Utopia-Regular.pfa Utopia-Regular.raw 

In Subrs entries in Utopia-Regular.raw will look like

dup 5 { 8 111 vstem -12 128 hstem 707 -20 hstem return } | 
and the CharStrings entries like
/exclam { 58 242 hsbw 6 callsubr 5 4 callsubr 63 707 rmoveto -54 0 -5 -22 4 -45 rrcurveto 40 -431 rlineto 29 hlineto 42 431 rlineto 4 45 -5 22 -55 0 rrcurveto closepath 6 4 callsubr -719 vmoveto 243 callsubr endchar } |- 

Adobe Type 1 Font Format is available free from Adobe as a PDF file: http://partners.adobe.com/asn/developer/PDFS/TN/T1_SPEC.PDF

The Type 2 Charstring Format, also available from Adobe as a PDF file, describes the newer Type 2 operators, which are also used in some multiple-master Type 1 fonts like Adobe Jenson and Kepler: http://partners.adobe.com/asn/developer/PDFS/TN/5177.Type2.pdf

Lee Hetherington (ilh@lcs.mit.edu) Eddie Kohler (ekohler@gmail.com)

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