[pdftex] Adding security pw to pdftex

[Ricardo Sanchez Carmenes]

How difficult would be to add security password to pdf files
generated by pdftex ? This feature would be very useful.

There is a package (htmldoc from Easy software), distributed
in source under the GPL, that transforms html documents directly
to pdf, and that has this ability implemented. This means that
it shouldn't be too difficult to implement in pdftex as well
without infringing copyrights (unless htmldoc is already doing so).

Regards, Ricardo.