Multiline Sucject as PDF metadata

[Heinz-Jürgen Oertel]

Hi,
hope it will be possible,
to write multi line subject lines as PDF meta data


currently I us 
.pdfinfo /Title .. /Author .. Keywords and Subject with succes.
All in one line, which is mostly enough for Title and Author.
But often I have a need to explain more about the document. What what help is 
using more than one line.
I tried different approaches, without success so far.

Any ideas?

.pdfinfo Subject "line 1\nline 2\n..."


Greetings
   Heinz