Fri, 10 Apr 2026 19:46:53 +0000 https://bugs.horde.org/ticket/7412 PDF preview only display black box The new preview function for attached pdfs only displays a black box (see attached screenshot). I have ImageMagick installed. Tue, 30 Sep 2008 06:57:21 +0000 https://bugs.horde.org/ticket/7412#t49301 ImageMagick fails to generate thumbnails on certain PDFs, nothing we could do about. Tue, 07 Oct 2008 13:19:50 +0000 https://bugs.horde.org/ticket/7412#t49456