I've a problem printing a pdf file I downloaded from
the internet. When I try to print it with the recent version
of the Acrobat reader, I get the error message saying that
some fonts could not be downloaded.
Trying to open that pdf file with ghostview, I get the error

Error: /undefined in /BXlevelAFPL Ghostscript 7.03: Unrecoverable error,
exit code 1

Operand stack:
--dict:2/2(L)-- 1 --dict:6/6(ro)(G)-- xref
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval--
--nostringval-- 2 %stopped_push --nostringval-- --nostringval--
--nostringval-- false 1 %stopped_push 1 3 %oparray_pop
1 3 %oparray_pop --nostringval-- --nostringval--
--nostringval-- --nostringval-- %loop_continue --nostringval--
false 1 %stopped_push --nostringval-- %loop_continue
--nostringval-- --nostr

Any ideas how to fix the pdf file or how to make it printable?

Thank you.