From d4118cf5e81c886af5349dab52929250ef58561c Mon Sep 17 00:00:00 2001
From: SUZUKI Masaya <suzukimasaya428@gmail.com>
Date: Fri, 18 Aug 2017 15:15:04 +0900
Subject: [PATCH] Enabled PDFDevice in the with statement (#88)

---
 pdfminer/pdfdevice.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pdfminer/pdfdevice.py b/pdfminer/pdfdevice.py
index 9321362..9435101 100644
--- a/pdfminer/pdfdevice.py
+++ b/pdfminer/pdfdevice.py
@@ -15,6 +15,12 @@ class PDFDevice(object):
     def __repr__(self):
         return '<PDFDevice>'
 
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.close()
+
     def close(self):
         return