>> $ echo 'Hello, world.' | groff -T pdf -P -d >> >> reveals a PostScript-like language, with unfortunate occasional recourse >> to non-printable characters.
> The ps-like page description language inside page streams is not the > problem. The structure of the pdf file that relies on file offsets > is. See the startxref at the end of the file, xref table at the > specified offset, and the list of offsets to pdf objects that follows. On top of that, it isn't a text file. My editor barfed: "warning: null characters elided; file will be different upon write" So when I asked the editor to go to the xref position, it missed. Doug