1 files changed, 7 insertions, 0 deletions
diff --git a/utils/pdfinfo.cc b/utils/pdfinfo.cc
index 22d9edd9..5a9745fa 100644
--- a/utils/pdfinfo.cc
+++ b/utils/pdfinfo.cc
@@ -20,6 +20,7 @@
 // Copyright (C) 2012, 2013 Adrian Johnson <ajohnson@redneon.com>
 // Copyright (C) 2012 Fabio D'Urso <fabiodurso@hotmail.it>
 // Copyright (C) 2013 Adrian Perez de Castro <aperez@igalia.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
@@ -207,6 +208,12 @@ int main(int argc, char *argv[]) {
   if (lastPage < 1 || lastPage > doc->getNumPages()) {
     lastPage = doc->getNumPages();
   }
+  if (lastPage < firstPage) {
+    error(errCommandLine, -1,
+          "Wrong page range given: the first page ({0:d}) can not be after the last page ({1:d}).",
+          firstPage, lastPage);
+    goto err2;
+  }
 
   // print doc info
   doc->getDocInfo(&info);