--- /dev/null
+# PDF - Portable Document Format - Postscript-like format by Adobe
+# Pattern quality: good fast
+# Protocol groups: file
+#
+# This pattern has been tested and is believe to work well.
+# To discuss this pattern:
+# http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
+
+# Matches PDF versions 1.0 - 1.6 (not sure if 1.6 exists yet, but it probably
+# will.
+pdf
+%PDF-1\.[0123456]