From ff952ad851a29dffe526640a5ac3fb10c002fcc4 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 30 Apr 2018 13:39:16 +0530
Subject: [PATCH] Book polishing: Add an option to upgrade EPUB 2 to EPUB 3

---
 src/calibre/gui2/actions/polish.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/gui2/actions/polish.py b/src/calibre/gui2/actions/polish.py
index 5097c6d4d0..50dc70171a 100644
--- a/src/calibre/gui2/actions/polish.py
+++ b/src/calibre/gui2/actions/polish.py
@@ -69,6 +69,7 @@ class Polish(QDialog):  # {{{
             'remove_jacket':_('<h3>Remove book jacket</h3>%s')%HELP['remove_jacket'],
             'remove_unused_css':_('<h3>Remove unused CSS rules</h3>%s')%HELP['remove_unused_css'],
             'compress_images': _('<h3>Losslessly compress images</h3>%s') % HELP['compress_images'],
+            'upgrade_book': _('<h3>Upgrade book internals</h3>%s') % HELP['upgrade_book'],
         }
 
         self.l = l = QGridLayout()
@@ -88,6 +89,7 @@ class Polish(QDialog):  # {{{
             ('remove_jacket', _('&Remove a previously inserted book jacket')),
             ('remove_unused_css', _('Remove &unused CSS rules from the book')),
             ('compress_images', _('Losslessly &compress images')),
+            ('upgrade_book', _('&Upgrade book internals')),
         ])
         prefs = gprefs.get('polishing_settings', {})
         for name, text in self.all_actions.iteritems():