The cpdf_text() function outputs
the string text at position
with coordinates (x-coor,
y-coor).
The optional parameter
mode determines the unit length. If it's 0 or
omitted the default unit as specified for the page is used.
Otherwise the coordinates are measured in postscript points
disregarding the current unit. The optional parameter orientation is the rotation of
the text in degree. The optional parameter alignmode determines how the text is
aligned.
See the ClibPDF documentation for possible values.
See also cpdf_show_xy().