Update copyrights
diff --git a/utils/pdftotext.cc b/utils/pdftotext.cc
index bd687ec..91661d9 100644
--- a/utils/pdftotext.cc
+++ b/utils/pdftotext.cc
@@ -23,6 +23,7 @@
// Copyright (C) 2011 Tom Gleason <tom@buildadam.com>
// Copyright (C) 2011 Steven Murdoch <Steven.Murdoch@cl.cam.ac.uk>
// Copyright (C) 2013 Yury G. Kudryashov <urkud.urkud@gmail.com>
+// Copyright (C) 2013 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
