diff --git a/samples/sampleOneByteIdentityEncode.pdf b/samples/sampleOneByteIdentityEncode.pdf
new file mode 100644
index 0000000..35abc4f
Binary files /dev/null and b/samples/sampleOneByteIdentityEncode.pdf differ
diff --git a/tests/test_tools_pdf2txt.py b/tests/test_tools_pdf2txt.py
index 18be203..6126d92 100644
--- a/tests/test_tools_pdf2txt.py
+++ b/tests/test_tools_pdf2txt.py
@@ -24,6 +24,7 @@ class TestDumpPDF():
         run('../samples/','simple1')
         run('../samples/','simple2')
         run('../samples/','simple3')
+        run('../samples/','sampleOneByteIdentityEncode')
 
     def test_2(self):
         run('../samples/nonfree/','dmca')