[R] Place a string into the header/footer of a pdf file generated during a plot session

[Tudor Bodea]

Dear useRs,

Do you know, by any chance, if it is possible to write a string in the
header/footer of a pdf file created during a plot session? To make sure that I
know what R script generated a certain chart, I would like to add the path to
the working directory into the header/footer of the corresponding pdf file.

Thank you.

Tudor
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Tudor Dan Bodea
Georgia Institute of Technology
School of Civil and Environmental Engineering
Web: http://www.prism.gatech.edu/~gtg757i