Ok, now optimized the tutorial size for real. Made JPG/PNG optimization for all the images. Modified some tutorial files to follow these size optimizations. Now the tutorial PDF generated is 3.95MB, so enjoy!

doc/tutorials/introduction/android_binary_package/android_binary_package.rst

@@ -53,7 +53,6 @@ You need the following tools to be installed:
      This is minimal platform supported by OpenCV Java API. And it is set as default for OpenCV distribution. It is possible to use platform having higher number with OpenCV package but it requires to edit OpenCV project settings.
 
      .. image:: images/android_sdk_and_avd_manager.png
-        :height: 400px 
         :alt: Android SDK and AVD manager
         :align: center
      
@@ -107,7 +106,6 @@ Get the OpenCV package for Android development
    You can unpack it using any popular archiver (for example with |seven_zip|_):
 
    .. image:: images/android_package_7zip.png
-      :height: 314px 
       :alt: Exploring OpenCV package with 7-Zip
       :align: center
 
@@ -133,7 +131,6 @@ Open OpenCV library and samples in Eclipse
    I recommend to start familiarising yourself with OpenCV for Android from new clean workspase. So I have choosen my OpenCV package directory for new workspace:
 
       .. image:: images/eclipse_1_choose_workspace.png
-         :height: 387px 
          :alt: Choosing C:\Work\android-opencv\ as workspace location
          :align: center
 
@@ -144,17 +141,11 @@ Open OpenCV library and samples in Eclipse
    
    * Select **Window > Preferences...** to open the Preferences panel (Mac OS X: **Eclipse > Preferences**):
 
-      .. image:: images/eclipse_2_window_preferences.png
-         :height: 400px 
-         :alt: Select Window > Preferences...
-         :align: center
-   
    * Select **Android** from the left panel.
 
     You may see a dialog asking whether you want to send usage statistics to Google. If so, make your choice and click **Proceed**. You cannot continue with this procedure until you click **Proceed**.
 
       .. image:: images/eclipse_3_preferences_android.png
-         :height: 396px 
          :alt: Select Android from the left panel
          :align: center
 
@@ -179,14 +170,12 @@ Open OpenCV library and samples in Eclipse
    * Right click on the *Package Explorer* window and choose **Import...** option from context menu:
 
       .. image:: images/eclipse_5_import_command.png
-         :height: 400px 
          :alt: Select Import... from context menu
          :align: center
 
    * In the main panel select **General** > **Existing Projects into Workspace** and press **Next** buton:
 
       .. image:: images/eclipse_6_import_existing_projects.png
-         :height: 450px 
          :alt: General > Existing Projects into Workspace
          :align: center
 
@@ -254,6 +243,5 @@ Well, running samples from Eclipse is very simple:
   Here is sample ``Tutorial 1 Basic - 1. Add OpenCV`` detecting edges using Canny algorithm from OpenCV:
 
   .. image:: images/emulator_canny.png
-     :height: 600px 
      :alt: Tutorial 1 Basic - 1. Add OpenCV - running Canny
      :align: center

doc/tutorials/introduction/linux_eclipse/linux_eclipse.rst

@@ -24,29 +24,21 @@ Making a project
 
 #. Go to **File -> New -> C/C++ Project**
 
-   .. image:: images/a0.jpg
-      :height: 400px 
+   .. image:: images/a0.png
       :alt: Eclipse Tutorial Screenshot 0
       :align: center
 
 #. Choose a name for your project (i.e. DisplayImage). An **Empty Project** should be okay for this example. 
 
-   .. image:: images/a1.jpg
-      :height: 400px 
+   .. image:: images/a1.png
       :alt: Eclipse Tutorial Screenshot 1
       :align: center
 
 #. Leave everything else by default. Press **Finish**. 
 
-   .. image:: images/a2.jpg
-      :height: 400px 
-      :alt: Eclipse Tutorial Screenshot 2
-      :align: center
-
 #. Your project (in this case DisplayImage) should appear in the **Project Navigator** (usually at the left side of your window).
 
-   .. image:: images/a3.jpg
-      :height: 400px 
+   .. image:: images/a3.png
       :alt: Eclipse Tutorial Screenshot 3
       :align: center
 
@@ -55,29 +47,17 @@ Making a project
 
    * Right click on **DisplayImage** (in the Navigator). **New -> Folder** . 
 
-     .. image:: images/a4.jpg
-        :height: 400px 
+     .. image:: images/a4.png
         :alt: Eclipse Tutorial Screenshot 4
         :align: center
 
    * Name your folder **src** and then hit **Finish**
 
-     .. image:: images/a5.jpg
-        :height: 400px 
-        :alt: Eclipse Tutorial Screenshot 5
-        :align: center
-
    * Right click on your newly created **src** folder. Choose **New source file**:
 
-     .. image:: images/a6.jpg
-        :height: 400px 
-        :alt: Eclipse Tutorial Screenshot 6
-        :align: center
-
    * Call it **DisplayImage.cpp**. Hit **Finish**
 
-     .. image:: images/a7.jpg
-        :height: 400px 
+     .. image:: images/a7.png
         :alt: Eclipse Tutorial Screenshot 7
         :align: center
 
@@ -113,17 +93,11 @@ Making a project
 
     * Go to  **Project-->Properties**
 
-     .. image:: images/a8.jpg
-        :height: 400px 
-        :alt: Eclipse Tutorial Screenshot 8
-        :align: center
-
     * In **C/C++ Build**, click on **Settings**. At the right, choose the **Tool Settings** Tab. Here we will enter the headers and libraries info:
 
       a. In **GCC C++ Compiler**, go to **Includes**. In **Include paths(-l)** you should include the path of the folder where opencv was installed. In our example, this is ``/usr/local/include/opencv``.
 
-         .. image:: images/a9.jpg
-            :height: 400px 
+         .. image:: images/a9.png
             :alt: Eclipse Tutorial Screenshot 9
             :align: center
 
@@ -163,8 +137,7 @@ Making a project
          opencv_legacy    
          opencv_flann
 
-         .. image:: images/a10.jpg
-             :height: 400px 
+         .. image:: images/a10.png
              :alt: Eclipse Tutorial Screenshot 10
              :align: center 
              
@@ -184,15 +157,9 @@ Making a project
 
     * Your project should be ready to be built. For this, go to **Project->Build all**   
 
-      .. image:: images/a11.jpg
-         :height: 400px 
-         :alt: Eclipse Tutorial Screenshot 11
-         :align: center 
-
       In the Console you should get something like 
 
-      .. image:: images/a12.jpg
-         :height: 200px 
+      .. image:: images/a12.png
          :alt: Eclipse Tutorial Screenshot 12
          :align: center 
 
@@ -207,24 +174,18 @@ So, now we have an executable ready to run. If we were to use the Terminal, we w
 
    cd <DisplayImage_directory>
    cd src
-   ./DisplayImage ../images/HappyLittleFish.jpg
+   ./DisplayImage ../images/HappyLittleFish.png
 
-Assuming that the image to use as the argument would be located in <DisplayImage_directory>/images/HappyLittleFish.jpg. We can still do this, but let's do it from Eclipse:
+Assuming that the image to use as the argument would be located in <DisplayImage_directory>/images/HappyLittleFish.png. We can still do this, but let's do it from Eclipse:
 
 
 #. Go to **Run->Run Configurations** 
 
-   .. image:: images/a13.jpg
-      :height: 300px 
-      :alt: Eclipse Tutorial Screenshot 13
-      :align: center 
-
 #. Under C/C++ Application you will see the name of your executable + Debug (if not, click over C/C++ Application a couple of times). Select the name (in this case **DisplayImage Debug**). 
 
-#. Now, in the right side of the window, choose the **Arguments** Tab. Write the path of the image file we want to open (path relative to the workspace/DisplayImage folder). Let's use **HappyLittleFish.jpg**:
+#. Now, in the right side of the window, choose the **Arguments** Tab. Write the path of the image file we want to open (path relative to the workspace/DisplayImage folder). Let's use **HappyLittleFish.png**:
 
-   .. image:: images/a14.jpg
-      :height: 300px 
+   .. image:: images/a14.png
       :alt: Eclipse Tutorial Screenshot 14
       :align: center 
 
@@ -234,5 +195,4 @@ Assuming that the image to use as the argument would be located in <DisplayImage
       :alt: Eclipse Tutorial Screenshot 15
       :align: center 
 
-
 #. Congratulations! You are ready to have fun with OpenCV using Eclipse.

doc/tutorials/introduction/load_save_image/load_save_image.rst

@@ -110,14 +110,12 @@ When you run your program you should get something like this:
 
  .. image:: images/Load_Save_Image_Result_1.jpg
     :alt: Load Save Image Result 1
-    :height: 400px
     :align: center
 
 And if you check in your folder (in my case *images*), you should have a newly .jpg file named *Gray_Image.jpg*:
 
  .. image:: images/Load_Save_Image_Result_2.jpg
     :alt: Load Save Image Result 2
-    :height: 250px
     :align: center
 
 Congratulations, you are done with this tutorial!

doc/tutorials/introduction/table_of_content_introduction/table_of_content_introduction.rst

@@ -23,7 +23,7 @@ Here you can read tutorials about how to set up your computer to work with the O
 
   =========== ======================================================
 
-  .. |Install_1| image:: images/ubuntu_logo.jpeg
+  .. |Install_1| image:: images/ubuntu-logo.jpg
                  :height: 90pt
                  :width:  90pt