Dear Maintainer,
Opening a passphrase-protected PDF yields:
stdout
**** Error: Couldn't initialise file.
Output may be incorrect.
and a Ghostscript Messages window containing
GPL Ghostscript 10.000.0:
**** This file requires a password for access.
**** Error: Couldn't initialise file.
Output may be incorrect.
No pages will be processed (FiestPage > LastPage).
I think gv should prompt for a passphrase in this case.
Best,