bachotex2005-martin-schroeder-pearl1.tex
bachotex2005-martin-schroeder-pearl1.tex
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%%% Martin Shr\"oeder: Spot colors in pdfTeX \newcommand*{\AC@addColor}[5]{% \immediate\pdfobj stream attr { /FunctionType 4 /Domain [0.0 1.0] /Range [0.0 1.0 0.0 1.0 0.0 1.0 0.0 1.0] } { { dup ?2 mul exch dup ?3 mul exch dup ?4 mul exch ?5 mul } }% \edef\AC@ColorFunctionObj{\the\pdflastobj}% \immediate\pdfobj {[ /Separation /?1 /DeviceCMYK \AC@ColorFunctionObj\space 0 R ]}% \begingroup \toks@\expandafter{\AC@colorhook}% \edef\x{% \endgroup \gdef\noexpand\AC@colorhook{% \the\toks@ /?1\space\the\pdflastobj\space 0 R % }% }% \x } % later \edef\AC@expand{\global\pdfpageresources {% /ColorSpace << \AC@colorhook >> }% \AC@expand % It uses % - \token registers % - \expandafter % - \edef % - \noexpand % and does separation colours in pdftex.
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