diff --git a/.travis.yml b/.travis.yml
index bcdfe40..6e1f218 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ compiler: gcc
 before_install:
   - sudo add-apt-repository ppa:coolwanglu/pdf2htmlex --yes
   - sudo apt-get update -qq
-  - sudo apt-get install -qq libpoppler-dev libspiro-dev libcairo-dev libfreetype6-dev
+  - sudo apt-get install -qq libpoppler-dev libspiro-dev libcairo-dev libfreetype6-dev libltdl-dev
 install:
   - export LIBRARY_PATH=/usr/local/lib
   - export LD_LIBRARY_PATH=/usr/local/lib
diff --git a/ChangeLog b/ChangeLog
index 184bfc8..b05e86a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,10 +1,13 @@
 Developing v0.12
 
 * Do not support Fontforge < 2.0.0 any more
+* New options
+ --process-annotation
 
 v0.11
 2014.01.19
 
+
 * Compress JS with closure-compiler
 * Compress CSS with YUI Compressor
 * jQuery removed
diff --git a/INSTALL b/INSTALL
new file mode 100644
index 0000000..64e4613
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,3 @@
+For instructions of building the source code, visit:
+https://github.com/coolwanglu/pdf2htmlEX/wiki/Building
+
diff --git a/pdf2htmlEX.1.in b/pdf2htmlEX.1.in
index 18c2f6c..8b01c34 100644
--- a/pdf2htmlEX.1.in
+++ b/pdf2htmlEX.1.in
@@ -134,6 +134,10 @@ Whether to process non-text objects (as images)
 .B --process-outline <0|1> (Default: 1)
 Whether to show outline in the generated HTML
 
+.TP
+.B --process-annotation <0|1> (Default: 0)
+Whether to show annotation in the generated HTML
+
 .TP
 .B --printing <0|1> (Default: 1)
 Enable printing support. Disabling this option may reduce the size of CSS.
diff --git a/src/BackgroundRenderer/CairoBackgroundRenderer.cc b/src/BackgroundRenderer/CairoBackgroundRenderer.cc
index a8bbebf..6a7f236 100644
--- a/src/BackgroundRenderer/CairoBackgroundRenderer.cc
+++ b/src/BackgroundRenderer/CairoBackgroundRenderer.cc
@@ -48,8 +48,8 @@ void CairoBackgroundRenderer::init(PDFDoc * doc)
     startDoc(doc);
 }
 
-static GBool annot_cb(Annot *, void *) {
-    return false;
+static GBool annot_cb(Annot *, void * pflag) {
+    return (*((bool*)pflag)) ? gTrue : gFalse;
 };
 
 void CairoBackgroundRenderer::render_page(PDFDoc * doc, int pageno)
@@ -81,12 +81,13 @@ void CairoBackgroundRenderer::render_page(PDFDoc * doc, int pageno)
     setCairo(cr);
     setPrinting(false);
 
+    bool process_annotation = param.process_annotation;
     doc->displayPage(this, pageno, param.h_dpi, param.v_dpi,
             0, 
             (!(param.use_cropbox)),
             false, 
             false,
-            nullptr, nullptr, &annot_cb, nullptr);
+            nullptr, nullptr, &annot_cb, &process_annotation);
 
     setCairo(nullptr);
     
diff --git a/src/BackgroundRenderer/SplashBackgroundRenderer.cc b/src/BackgroundRenderer/SplashBackgroundRenderer.cc
index dfe248d..0e42b32 100644
--- a/src/BackgroundRenderer/SplashBackgroundRenderer.cc
+++ b/src/BackgroundRenderer/SplashBackgroundRenderer.cc
@@ -72,17 +72,18 @@ void SplashBackgroundRenderer::init(PDFDoc * doc)
     startDoc(doc);
 }
 
-static GBool annot_cb(Annot *, void *) {
-    return false;
+static GBool annot_cb(Annot *, void * pflag) {
+    return (*((bool*)pflag)) ? gTrue : gFalse;
 };
 
 void SplashBackgroundRenderer::render_page(PDFDoc * doc, int pageno)
 {
+    bool process_annotation = param.process_annotation;
     doc->displayPage(this, pageno, param.h_dpi, param.v_dpi,
             0, 
             (!(param.use_cropbox)),
             false, false,
-            nullptr, nullptr, &annot_cb, nullptr);
+            nullptr, nullptr, &annot_cb, &process_annotation);
 }
 
 void SplashBackgroundRenderer::embed_image(int pageno)
diff --git a/src/HTMLTextLine.cc b/src/HTMLTextLine.cc
index 8f94627..8e63226 100644
--- a/src/HTMLTextLine.cc
+++ b/src/HTMLTextLine.cc
@@ -472,17 +472,14 @@ void HTMLTextLine::optimize_normal(std::vector<HTMLTextLine*> & lines)
 // for optimize-text == 3
 void HTMLTextLine::optimize_aggressive(std::vector<HTMLTextLine*> & lines)
 {
+    /*
     HTMLLineState original_line_state = line_state;
     // break the line if there are a large (positive or negative) shift
     // letter space / word space are not taken into consideration (yet)
     while(true) 
     {
-
-        
-
     }
 
-    /*
     // aggressive optimization
     if(target > state_iter1->em_size() * (param.space_threshold) - EPS)
         out << ' ';
diff --git a/src/Param.h b/src/Param.h
index 096d64b..9d42620 100644
--- a/src/Param.h
+++ b/src/Param.h
@@ -37,6 +37,7 @@ struct Param
     std::string outline_filename;
     int process_nontext;
     int process_outline;
+    int process_annotation;
     int printing;
     int fallback;
     int tmp_file_size_limit;
diff --git a/src/pdf2htmlEX.cc b/src/pdf2htmlEX.cc
index 257eba5..5dbd49f 100644
--- a/src/pdf2htmlEX.cc
+++ b/src/pdf2htmlEX.cc
@@ -163,6 +163,7 @@ void parse_options (int argc, char **argv)
         .add("outline-filename", &param.outline_filename, "", "filename of the generated outline file")
         .add("process-nontext", &param.process_nontext, 1, "render graphics in addition to text")
         .add("process-outline", &param.process_outline, 1, "show outline in HTML")
+        .add("process-annotation", &param.process_annotation, 0, "show annotation in HTML")
         .add("printing", &param.printing, 1, "enable printing support")
         .add("fallback", &param.fallback, 0, "output in fallback mode")
         .add("tmp-file-size-limit", &param.tmp_file_size_limit, -1, "Maximum size (in KB) used by temporary files, -1 for no limit.")