diff --git a/src/HTMLTextPage.cc b/src/HTMLTextPage.cc
index fa8eb3d..780b0fa 100644
--- a/src/HTMLTextPage.cc
+++ b/src/HTMLTextPage.cc
@@ -6,8 +6,6 @@
  * Copyright (C) 2013 Lu Wang <coolwanglu@gmail.com>
  */
 
-#include <algorithm>
-
 #include "HTMLTextPage.h"
 
 namespace pdf2htmlEX {
@@ -23,7 +21,10 @@ HTMLTextPage::HTMLTextPage(const Param & param, AllStateManager & all_manager)
 
 void HTMLTextPage::dump_text(ostream & out)
 {
-    prepare();
+    for(auto iter = text_lines.begin(); iter != text_lines.end(); ++iter)
+        (*iter)->prepare();
+    if(param.optimize_text)
+        optimize();
     for(auto iter = text_lines.begin(); iter != text_lines.end(); ++iter)
         (*iter)->dump_text(out);
 }
@@ -74,21 +75,6 @@ void HTMLTextPage::open_new_line(void)
     }
 }
 
-static bool is_text_line_empty(const unique_ptr<HTMLTextLine>& p)
-{
-    return p->empty();
-}
-
-void HTMLTextPage::prepare(void)
-{
-    // remove empty lines
-    text_lines.erase(remove_if(text_lines.begin(), text_lines.end(), is_text_line_empty), text_lines.end());
-    for(auto iter = text_lines.begin(); iter != text_lines.end(); ++iter)
-        (*iter)->prepare();
-    if(param.optimize_text)
-        optimize();
-}
-
 void HTMLTextPage::optimize(void)
 {
     //TODO
diff --git a/src/HTMLTextPage.h b/src/HTMLTextPage.h
index 8d441a8..dcd2559 100644
--- a/src/HTMLTextPage.h
+++ b/src/HTMLTextPage.h
@@ -39,7 +39,6 @@ public:
     void open_new_line(void);
 
 private:
-    void prepare(void);
     void optimize(void);
 
     const Param & param;