diff --git a/README.md b/README.md
index 15fff21..f67792f 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,9 @@ pdf2html**EX**
 
 [**View Demo**](http://coolwanglu.github.com/pdf2htmlEX/demo/demo.html)
 
+**WINDOWS USERS: Please make sure ClearType is turned on** 
+(Control Panel -> Display -> Appearance -> Effects -> "Use the following method to smooth edges of screen fonts" -> ClearType)
+
 Introduction
 -----------------------------
 pdf2htmlEX renders PDF files in HTML, utilizing modern Web technologies, aims to provide an accuracy rendering, while keeping optimized for Web display.