[Groff] `fi' makes trouble in pdf

[Bernd Warken]

##### -Tpdf

The command

$ echo file | groff -Tpdf > /tmp/g.pdf
$ okular g.pdf

will only print `le', the `fi' has vanished. That is because the ligature `fi'
is not available in pdf mode.


##### -Tps ok, but  ps2pdf does not

$ echo file | groff -Tps > /tmp/g.ps
$ gv g.ps

will print `file', so the ligature `fi' is displayed.  But

$ ps2pdf /tmp/g.ps

will override `/tmp/g.pdf' and

$ okular g.pdf

will show again the loss of the ligature `fi'.


#####

These look like a bug in pdf mode, maybe also some basic stuff in ps modem
I could not check what exactly.

Bernd Warken