Dear Maintainer, A little more detail about this bug:
I’ve noticed that the version of mupdf in Jessie can open PDF files I’ve encrypted with the version of qpdf in Jessie. It seems to be only files I encrypted with qpdf in Wheezy, before the release of Jessie, that cause problems for Jessie’s version of mupdf. Thanks again for packaging this excellent viewer. Thérèse Bonin
