diff --git a/10-seeddms.sh b/10-seeddms.sh
index 5c6fedf..e797cb0 100755
--- a/10-seeddms.sh
+++ b/10-seeddms.sh
@@ -11,6 +11,9 @@ tar xzf /srv/seeddms.tgz -C /srv
 mv /srv/seeddms51x /srv/seeddms
 rm -f /srv/seeddms.tgz
 
+# Patch Previewers
+patch -d /srv/seeddms -p0 <${SOURCE_DIR}/seeddms/seeddms-previewers.patch
+
 # Populate database
 export SEEDDMS_PWD=$(head -c 18 /dev/urandom | base64)
 envsubst <${SOURCE_DIR}/seeddms/tmp/seeddms-createdb.sql >/tmp/seeddms-createdb.sql
diff --git a/seeddms/seeddms-previewers.patch b/seeddms/seeddms-previewers.patch
new file mode 100644
index 0000000..75ea814
--- /dev/null
+++ b/seeddms/seeddms-previewers.patch
@@ -0,0 +1,42 @@
+diff -ruN orig/SeedDMS/Preview/PdfPreviewer.php pear/SeedDMS/Preview/PdfPreviewer.php
+--- orig/SeedDMS/Preview/PdfPreviewer.php	2017-05-03 14:14:18.000000000 +0200
++++ pear/SeedDMS/Preview/PdfPreviewer.php	2017-10-07 19:01:01.169624330 +0200
+@@ -27,10 +27,15 @@
+ 	function __construct($previewDir, $timeout=5) { /* {{{ */
+ 		parent::__construct($previewDir, $timeout);
+ 		$this->converters = array(
+-			'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
+-			'application/vnd.oasis.opendocument.text' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
+ 			'text/rtf' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
+ 			'application/msword' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
++			'application/vnd.oasis.opendocument.text' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
++			'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
++			'application/vnd.ms-excel' => "unoconv -d spreadsheet -f pdf --stdout -v '%f' > '%o'",
++			'application/vnd.oasis.opendocument.spreadsheet' => "unoconv -d spreadsheet -f pdf --stdout -v '%f' > '%o'",
++			'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => "unoconv -d spreadsheet -f pdf --stdout -v '%f' > '%o'",
++			'text/html' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
++			'text/plain' => "unoconv -d document -f pdf --stdout -v '%f' > '%o'",
+ 		);
+ 	} /* }}} */
+ 
+diff -ruN orig/SeedDMS/Preview/Previewer.php pear/SeedDMS/Preview/Previewer.php
+--- orig/SeedDMS/Preview/Previewer.php	2017-05-03 14:14:18.000000000 +0200
++++ pear/SeedDMS/Preview/Previewer.php	2017-10-07 19:02:22.781623907 +0200
+@@ -40,7 +40,16 @@
+ 			'text/plain' => "convert -resize %wx '%f' '%o'",
+ 			'application/pdf' => "convert -density 100 -resize %wx '%f[0]' '%o'",
+ 			'application/postscript' => "convert -density 100 -resize %wx '%f[0]' '%o'",
+-			'application/x-compressed-tar' => "tar tzvf '%f' | convert -density 100 -resize %wx text:-[0] '%o",
++			'application/x-compressed-tar' => "tar tzvf '%f' | convert -density 100 -resize %wx text:-[0] '%o'",
++			'text/rtf' => "unoconv -d document -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'application/msword' => "unoconv -d document -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'application/vnd.oasis.opendocument.text' => "unoconv -d document -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => "unoconv -d document -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'application/vnd.ms-excel' => "unoconv -d spreadsheet -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'application/vnd.oasis.opendocument.spreadsheet' => "unoconv -d spreadsheet -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => "unoconv -d spreadsheet -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'text/html' => "unoconv -d document -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
++			'text/plain' => "unoconv -d document -e PageRange=1-1 -f pdf --stdout '%f' | convert -resize %wx pdf:- '%o'",
+ 		);
+ 		$this->width = intval($width);
+ 	} /* }}} */