Описание
bool
ps_set_info ( resource p, string key, string val )
Sets certain information fields of the document. This fields will be shown
as a comment in the header of the PostScript file. The values which can be
set are Keywords, Subject,
Title, Creator,
Author, BoundingBox, and
Orientation. Be aware that some of them has a meaning to
PostScript viewers.
The BoundingBox is usually set to the value given to the
first page. This only works if ps_findfont() has not
been called before. In such cases the BoundingBox would be left unset
unless you set it explicitly with this function.