Add support to print information about encrypted pdfs.
Add support to print information about encrypted pdfs.

darcs-hash:20090630012750-86a4e-f0a182034cdb5d1a2cc34cfce3ce6c05872c1ab6.gz

nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf