--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bin/pdfdetextify	Thu Aug 29 13:58:17 2013 +0200
@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# convert pdf to tiff and back to pdf in order to convert text to image
+# writes to stdout
+#
+# depends on: gs, tiff2pdf (libtiff-tools)
+
+temp="`mktemp /tmp/${0##*/}.XXXXXX`"
+trap 'rm -f "$temp"' 0 1 2 3 15
+
+for i do
+	# echo "processing $i"
+	gs -q -dNOPAUSE -dBATCH -sPAPERSIZE=a4 -dPDFSETTINGS=/prepress \
+			-r300 -o "$temp" -sDEVICE=tiffgray -sCompression=lzw "$i"
+	tiff2pdf -z "$temp"
+done