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/core/adding_images/adding_images.rst

@@ -116,4 +116,4 @@ Result
 
 .. image:: images/Adding_Images_Tutorial_Result_0.jpg
    :alt: Blending Images Tutorial - Final Result
-   :align: center 
+   :align: center 

doc/tutorials/core/basic_geometric_drawing/basic_geometric_drawing.rst

@@ -260,6 +260,6 @@ Result
 
 Compiling and running your program should give you a result like this:
 
-.. image:: images/Drawing_1_Tutorial_Result_0.jpg
+.. image:: images/Drawing_1_Tutorial_Result_0.png
    :alt: Drawing Tutorial 1 - Final Result
    :align: center 

doc/tutorials/core/basic_linear_transform/basic_linear_transform.rst

@@ -92,9 +92,10 @@ Code
        { for( int x = 0; x < image.cols; x++ )
             { for( int c = 0; c < 3; c++ )
                  {
-		  new_image.at<Vec3b>(y,x)[c] = saturate_cast<uchar>( alpha*( image.at<Vec3b>(y,x)[c] ) + beta );
+         new_image.at<Vec3b>(y,x)[c] = 
+            saturate_cast<uchar>( alpha*( image.at<Vec3b>(y,x)[c] ) + beta );
                 }
-	    }
+       }
        }
 
     /// Create Windows
@@ -145,8 +146,9 @@ Explanation
       for( int y = 0; y < image.rows; y++ )
          { for( int x = 0; x < image.cols; x++ )
               { for( int c = 0; c < 3; c++ )
-                   { new_image.at<Vec3b>(y,x)[c] = saturate_cast<uchar>( alpha*( image.at<Vec3b>(y,x)[c] ) + beta ); }
-	      }
+                   { new_image.at<Vec3b>(y,x)[c] = 
+                               saturate_cast<uchar>( alpha*( image.at<Vec3b>(y,x)[c] ) + beta ); }
+         }
          }
  
    Notice the following:
@@ -194,6 +196,5 @@ Result
 * We get this:
 
 .. image:: images/Basic_Linear_Transform_Tutorial_Result_0.jpg
-   :height: 400px
    :alt: Basic Linear Transform - Final Result
-   :align: center 
+   :align: center 

doc/tutorials/core/mat - the basic image container/mat - the basic image container.rst

@@ -97,7 +97,7 @@ Although *Mat* is a great class as image container it is also a general matrix c
         :tab-width: 4
         :lines:  27-28
 
-    .. image:: images/MatBasicContainerOut1.jpg
+    .. image:: images/MatBasicContainerOut1.png
        :alt: Demo image of the matrix output
        :align: center
 
@@ -125,7 +125,7 @@ Although *Mat* is a great class as image container it is also a general matrix c
 
      .. code-block:: cpp
 
-        IplImage* img = cvLoadImage("greatwave.jpg", 1);
+        IplImage* img = cvLoadImage("greatwave.png", 1);
         Mat mtx(img); // convert IplImage* -> Mat
 
    + :basicstructures:`Create() <mat-create>` function:
@@ -135,7 +135,7 @@ Although *Mat* is a great class as image container it is also a general matrix c
         :tab-width: 4
         :lines:  31-32
 
-    .. image:: images/MatBasicContainerOut2.jpg
+    .. image:: images/MatBasicContainerOut2.png
        :alt: Demo image of the matrix output
        :align: center
 
@@ -148,7 +148,7 @@ Although *Mat* is a great class as image container it is also a general matrix c
         :tab-width: 4
         :lines:  40-47
 
-    .. image:: images/MatBasicContainerOut3.jpg
+    .. image:: images/MatBasicContainerOut3.png
        :alt: Demo image of the matrix output
        :align: center
 
@@ -159,7 +159,7 @@ Although *Mat* is a great class as image container it is also a general matrix c
         :tab-width: 4
         :lines:  50-51
 
-    .. image:: images/MatBasicContainerOut6.jpg
+    .. image:: images/MatBasicContainerOut6.png
        :alt: Demo image of the matrix output
        :align: center
 
@@ -170,7 +170,7 @@ Although *Mat* is a great class as image container it is also a general matrix c
         :tab-width: 4
         :lines:  53-54
 
-     .. image:: images/MatBasicContainerOut7.jpg
+     .. image:: images/MatBasicContainerOut7.png
         :alt: Demo image of the matrix output
         :align: center
 
@@ -197,7 +197,7 @@ In the above examples you could see the default formatting option. Nevertheless,
        :tab-width: 4
        :lines: 61
 
-     .. image:: images/MatBasicContainerOut8.jpg
+     .. image:: images/MatBasicContainerOut8.png
         :alt: Default Output
         :align: center
 
@@ -208,7 +208,7 @@ In the above examples you could see the default formatting option. Nevertheless,
        :tab-width: 4
        :lines: 62
 
-     .. image:: images/MatBasicContainerOut16.jpg
+     .. image:: images/MatBasicContainerOut16.png
         :alt: Default Output
         :align: center
 
@@ -219,7 +219,7 @@ In the above examples you could see the default formatting option. Nevertheless,
        :tab-width: 4
        :lines: 64
 
-     .. image:: images/MatBasicContainerOut10.jpg
+     .. image:: images/MatBasicContainerOut10.png
         :alt: Default Output
         :align: center
 
@@ -230,7 +230,7 @@ In the above examples you could see the default formatting option. Nevertheless,
        :tab-width: 4
        :lines: 63
 
-     .. image:: images/MatBasicContainerOut9.jpg
+     .. image:: images/MatBasicContainerOut9.png
         :alt: Default Output
         :align: center
 
@@ -241,7 +241,7 @@ In the above examples you could see the default formatting option. Nevertheless,
        :tab-width: 4
        :lines: 65
 
-     .. image:: images/MatBasicContainerOut11.jpg
+     .. image:: images/MatBasicContainerOut11.png
         :alt: Default Output
         :align: center
 
@@ -259,7 +259,7 @@ OpenCV offers support for print of other common OpenCV data structures too via t
        :tab-width: 4
        :lines: 67-68
 
-     .. image:: images/MatBasicContainerOut12.jpg
+     .. image:: images/MatBasicContainerOut12.png
         :alt: Default Output
         :align: center
 
@@ -271,7 +271,7 @@ OpenCV offers support for print of other common OpenCV data structures too via t
        :tab-width: 4
        :lines: 70-71
 
-     .. image:: images/MatBasicContainerOut13.jpg
+     .. image:: images/MatBasicContainerOut13.png
         :alt: Default Output
         :align: center
 
@@ -282,7 +282,7 @@ OpenCV offers support for print of other common OpenCV data structures too via t
        :tab-width: 4
        :lines: 74-77
 
-     .. image:: images/MatBasicContainerOut14.jpg
+     .. image:: images/MatBasicContainerOut14.png
         :alt: Default Output
         :align: center
 
@@ -293,7 +293,7 @@ OpenCV offers support for print of other common OpenCV data structures too via t
        :tab-width: 4
        :lines: 79-83
 
-     .. image:: images/MatBasicContainerOut15.jpg
+     .. image:: images/MatBasicContainerOut15.png
         :alt: Default Output
         :align: center
 

doc/tutorials/core/random_generator_and_text/random_generator_and_text.rst

@@ -230,56 +230,35 @@ As you just saw in the Code section, the program will sequentially execute diver
 #. First a random set of *NUMBER* lines will appear on screen such as it can be seen in this screenshot:
 
    .. image:: images/Drawing_2_Tutorial_Result_0.jpg
-      :height: 300px
       :alt: Drawing Tutorial 2 - Final Result 0
       :align: center 
 
-#. Then, a new set of figures, these time *rectangles* will follow:
-
-   .. image:: images/Drawing_2_Tutorial_Result_1.jpg
-      :height: 300px
-      :alt: Drawing Tutorial 2 - Final Result 1
-      :align: center 
+#. Then, a new set of figures, these time *rectangles* will follow.
 
 #. Now some ellipses will appear, each of them with random position, size, thickness and arc length:
 
    .. image:: images/Drawing_2_Tutorial_Result_2.jpg
-      :height: 300px
       :alt: Drawing Tutorial 2 - Final Result 2
       :align: center 
 
 #. Now, *polylines* with 03 segments will appear on screen, again in random configurations.
 
    .. image:: images/Drawing_2_Tutorial_Result_3.jpg
-      :height: 300px
       :alt: Drawing Tutorial 2 - Final Result 3
       :align: center 
 
-#. Filled polygons (in this example triangles) will follow:
-
-   .. image:: images/Drawing_2_Tutorial_Result_4.jpg
-      :height: 300px
-      :alt: Drawing Tutorial 2 - Final Result 4
-      :align: center 
+#. Filled polygons (in this example triangles) will follow.
 
 #. The last geometric figure to appear: circles!
 
    .. image:: images/Drawing_2_Tutorial_Result_5.jpg
-      :height: 300px
       :alt: Drawing Tutorial 2 - Final Result 5
       :align: center 
 
 #. Near the end, the text *"Testing Text Rendering"* will appear in a variety of fonts, sizes, colors and positions.
 
-   .. image:: images/Drawing_2_Tutorial_Result_6.jpg
-      :height: 300px
-      :alt: Drawing Tutorial 2 - Final Result 6
-      :align: center 
-
 #. And the big end (which by the way expresses a big truth too):
 
    .. image:: images/Drawing_2_Tutorial_Result_7.jpg
-      :height: 300px
       :alt: Drawing Tutorial 2 - Final Result 7
-      :align: center 
-
+      :align: center