diff --git a/README.rst b/README.rst
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+++ b/README.rst
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+`Replacer <https://github.com/narusemotoki/replacer>`_
+======================================================
+
+This is plugin of Pelican. You can replace a text of a generated HTML. You can write replacing rule in your pelicanconf.py.
+
+Example
+=======
+
+This example is replacing from '<table border="1" class="docutils">' to '<table class="table table-striped table-bordered table-hover">'.
+
+::
+
+    REPLACES = (
+        (u'<table border="1" class="docutils">', u'<table class="table table-striped table-bordered table-hover">'),
+    )
diff --git a/__init__.py b/__init__.py
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+++ b/__init__.py
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+from .replacer import *
diff --git a/replacer.py b/replacer.py
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+++ b/replacer.py
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+# -*- coding: utf-8 -*-
+import pelican
+
+
+def init(pelican_object):
+    # I have no good idea. Pass settings to replace function.
+    global replaces
+    replaces = pelican_object.settings.get('REPLACES', ())
+
+
+def replace(path, context):
+    with open(path, 'r') as f:
+        s = f.read()
+        for src, tgt in replaces:
+            s = s.decode('utf-8').replace(src.decode('utf-8'), tgt.decode('utf-8'))
+
+    with open(path, 'w') as f:
+        f.write(s.encode('utf-8'))
+
+
+def register():
+    pelican.signals.initialized.connect(init)
+    pelican.signals.content_written.connect(replace)