diff --git a/src/Consts.cc b/src/Consts.cc
index 3467335..991582c 100644
--- a/src/Consts.cc
+++ b/src/Consts.cc
@@ -12,7 +12,7 @@ using std::string;
 
 const double EPS = 1e-6;
 
-const string TMP_DIR="/tmp/pdf2htmlEX";
+const double id_matrix[6] = {1.0, 0.0, 0.0, 1.0, 0.0, 0.0};
 
 const map<string, string> BASE_14_FONT_CSS_FONT_MAP({
    { "Courier", "Courier,monospace" },
@@ -22,8 +22,6 @@ const map<string, string> BASE_14_FONT_CSS_FONT_MAP({
    { "ZapfDingbats", "ZapfDingbats,\"Dingbats\"" },
 });
 
-const double id_matrix[6] = {1.0, 0.0, 0.0, 1.0, 0.0, 0.0};
-
 const map<string, string> GB_ENCODED_FONT_NAME_MAP({
     {"\xCB\xCE\xCC\xE5", "SimSun"},
     {"\xBA\xDA\xCC\xE5", "SimHei"},
diff --git a/src/Consts.h b/src/Consts.h
index 8be17bd..4f87166 100644
--- a/src/Consts.h
+++ b/src/Consts.h
@@ -12,16 +12,9 @@
 #include <map>
 
 extern const double EPS;
-
-extern const std::string HTML_HEAD;
-extern const std::string HTML_TAIL;
-
-extern const std::string TMP_DIR;
-
-extern const std::map<std::string, std::string> BASE_14_FONT_CSS_FONT_MAP;
-
 extern const double id_matrix[6];
 
+extern const std::map<std::string, std::string> BASE_14_FONT_CSS_FONT_MAP;
 extern const std::map<std::string, std::string> GB_ENCODED_FONT_NAME_MAP;
 
 #endif //CONSTS_H__
diff --git a/src/HTMLRenderer/general.cc b/src/HTMLRenderer/general.cc
index 7a992fb..fa88d05 100644
--- a/src/HTMLRenderer/general.cc
+++ b/src/HTMLRenderer/general.cc
@@ -23,7 +23,7 @@ HTMLRenderer::HTMLRenderer(const Param * param)
     ,image_count(0)
     ,param(param)
     ,dest_dir(param->dest_dir)
-    ,tmp_dir(TMP_DIR)
+    ,tmp_dir(param->tmp_dir)
 {
     // install default font & size
     install_font(nullptr);