diff --git a/src/HTMLRenderer/text.cc b/src/HTMLRenderer/text.cc
index b161af6..11202ab 100644
--- a/src/HTMLRenderer/text.cc
+++ b/src/HTMLRenderer/text.cc
@@ -166,12 +166,13 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
     }
 
     ffw_load_font(filepath.c_str());
+    ffw_prepare_font();
 
     if(param->debug)
     {
-        auto fn = str_fmt("%s/__raw_font_%lld%s", param->tmp_dir.c_str(), info.id, param->font_suffix.c_str());
+        auto fn = str_fmt("%s/__raw_font_%lld", param->tmp_dir.c_str(), info.id, param->font_suffix.c_str());
         add_tmp_file((char*)fn);
-        ffw_save((char*)fn);
+        ofstream((char*)fn, ofstream::binary) << ifstream(filepath).rdbuf();
     }
 
     int * code2GID = nullptr;
@@ -406,6 +407,7 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
         }
 
         ffw_set_widths(width_list, max_key + 1, param->stretch_narrow_glyph, param->squeeze_wide_glyph, param->remove_unused_glyph);
+        
         ffw_reencode_raw(cur_mapping, max_key + 1, 1);
 
         if(ctu)
diff --git a/src/ffw.c b/src/ffw.c
index 434b9bf..21dbb32 100644
--- a/src/ffw.c
+++ b/src/ffw.c
@@ -48,13 +48,9 @@ static char * strcopy(const char * str)
     return _;
 }
 
-static void dumb_logwarning(const char * format, ...)
-{
-}
+static void dumb_logwarning(const char * format, ...) { }
 
-static void dumb_post_error(const char * title, const char * error, ...)
-{
-}
+static void dumb_post_error(const char * title, const char * error, ...) { }
 
 void ffw_init(int debug)
 {
@@ -118,6 +114,41 @@ void ffw_load_font(const char * filename)
     cur_fv = font->fv;
 }
 
+/*
+ * Fight again dirty stuffs
+ */
+void ffw_prepare_font(void)
+{
+    /*
+     * Disabled, because it causes crashing
+     
+    memset(cur_fv->selected, 1, cur_fv->map->enccount);
+    // remove kern
+    FVRemoveKerns(cur_fv);
+    FVRemoveVKerns(cur_fv);
+    */
+
+    /*
+     * Remove Alternate Unicodes
+     * We never use them because we will do a force encoding
+     */
+    int i;
+    SplineFont * sf = cur_fv->sf;
+    for(i = 0; i < sf->glyphcnt; ++i)
+    {
+        SplineChar * sc = sf->glyphs[i];
+        if(sc)
+        {
+            struct altuni * p = sc->altuni;
+            if(p)
+            {
+                AltUniFree(p);
+                sc->altuni = NULL;
+            }
+        }
+    }
+}
+
 static void ffw_do_reencode(Encoding * encoding, int force)
 {
     assert(encoding);
@@ -295,20 +326,12 @@ void ffw_metric(double * ascent, double * descent)
 
 /*
  * TODO:bitmap, reference have not been considered in this function
+ * TODO:remove_unused may not be suitable to be done here
  */
 void ffw_set_widths(int * width_list, int mapping_len, 
         int stretch_narrow, int squeeze_wide,
         int remove_unused)
 {
-    /*
-     * Disabled, because it causes crashing
-     
-    memset(cur_fv->selected, 1, cur_fv->map->enccount);
-    // remove kern
-    FVRemoveKerns(cur_fv);
-    FVRemoveVKerns(cur_fv);
-    */
-
     SplineFont * sf = cur_fv->sf;
 
     if(sf->onlybitmaps 
diff --git a/src/include/ffw.h b/src/include/ffw.h
index d20469a..8c34870 100644
--- a/src/include/ffw.h
+++ b/src/include/ffw.h
@@ -23,6 +23,7 @@ extern "C" {
 void ffw_init(int debug);
 void ffw_fin(void);
 void ffw_load_font(const char * filename);
+void ffw_prepare_font(void);
 void ffw_reencode_glyph_order(void);
 void ffw_reencode_raw(int32_t * mapping, int mapping_len, int force);
 void ffw_reencode_raw2(char ** mapping, int mapping_len, int force);
diff --git a/test/test.py b/test/test.py
index 3e39e1a..5298d58 100755
--- a/test/test.py
+++ b/test/test.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 DIR = 'pdf'
-DIR = '../../pdf.js/test/pdfs'
+#DIR = '../../pdf.js/test/pdfs'
 
 import os