diff --git a/doc/conf.py b/doc/conf.py
index e9998d237..ef3ff68d7 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -35,6 +35,8 @@ epub_publisher = 'http://sphinx-doc.org/'
 epub_scheme = 'url'
 epub_identifier = epub_publisher
 epub_pre_files = [('index.html', 'Welcome')]
+epub_post_files = [('install.html', 'Installing Sphinx'),
+    ('develop.html', 'Sphinx development')]
 epub_exclude_files = ['_static/opensearch.xml', '_static/doctools.js',
     '_static/jquery.js', '_static/searchtools.js', '_static/underscore.js',
     '_static/basic.css', 'search.html', '_static/websupport.js']
diff --git a/doc/install.rst b/doc/install.rst
index 3af60dad5..d4457899e 100644
--- a/doc/install.rst
+++ b/doc/install.rst
@@ -77,7 +77,7 @@ Go to http://python.org . This site is a headquarter of the
 Python. Look at Left sidebar and "Quick Links", Click "Windows
 Installer" to download.
 
-.. image:: pythonorg.jpg
+.. image:: pythonorg.png
 
 .. note::
 
diff --git a/doc/pythonorg.jpg b/doc/pythonorg.png
similarity index 100%
rename from doc/pythonorg.jpg
rename to doc/pythonorg.png
diff --git a/sphinx/themes/epub/static/epub.css b/sphinx/themes/epub/static/epub.css
index 9ce90fae2..b46c0873c 100644
--- a/sphinx/themes/epub/static/epub.css
+++ b/sphinx/themes/epub/static/epub.css
@@ -22,6 +22,7 @@ a:link, a:visited {
 
 img {
     border: 0;
+    max-width: 100%;
 }
 
 /* -- relbar ---------------------------------------------------------------- */