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diff --git a/doc/salome/gui/GEOM/images/image47.gif b/doc/salome/gui/GEOM/images/image47.gif
deleted file mode 100755
index 6e6cbead4..000000000
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diff --git a/doc/salome/gui/GEOM/images/image47.png b/doc/salome/gui/GEOM/images/image47.png
new file mode 100644
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diff --git a/doc/salome/gui/GEOM/input/add_point_on_edge_operation.doc b/doc/salome/gui/GEOM/input/add_point_on_edge_operation.doc
index f16624bbd..465928b80 100644
--- a/doc/salome/gui/GEOM/input/add_point_on_edge_operation.doc
+++ b/doc/salome/gui/GEOM/input/add_point_on_edge_operation.doc
@@ -26,9 +26,9 @@ the point according to one of the selected modes.
 
 \n <b>Example:</b>
 
-\image html image167.jpg "The initial edge"
+\image html image167.png "The initial edge"
 
-\image html image168.jpg "The edge split in two segments" 
+\image html image168.png "The edge split in two segments" 
 
 Our <b>TUI Scripts</b> provide you with useful examples of the use of 
 \ref tui_add_point_on_edge "Repairing Operations".
diff --git a/doc/salome/gui/GEOM/input/building_by_blocks.doc b/doc/salome/gui/GEOM/input/building_by_blocks.doc
index fa2611d7c..5a39fbf1a 100644
--- a/doc/salome/gui/GEOM/input/building_by_blocks.doc
+++ b/doc/salome/gui/GEOM/input/building_by_blocks.doc
@@ -65,7 +65,7 @@ four edges from which the face is constructed.</li>
 \image html block3.png
 
 \n <b>Example:</b>
-\image html image185.jpg "Quadrangle face built by blocks"
+\image html image185.png "Quadrangle face built by blocks"
 
 
 <br><br>
@@ -104,10 +104,10 @@ automatically.</li>
 
 \n <b>Example:</b>
 
-\image html image180.jpg
+\image html image180.png
 <center>Hexahedral Solid built on the base of six Faces</center>
 
-\image html image181.jpg
+\image html image181.png
 <center>Hexahedral Solid built on the base of two Faces</center>
 
 
diff --git a/doc/salome/gui/GEOM/input/change_orientation_operation.doc b/doc/salome/gui/GEOM/input/change_orientation_operation.doc
index db1045b72..15fb20e9e 100644
--- a/doc/salome/gui/GEOM/input/change_orientation_operation.doc
+++ b/doc/salome/gui/GEOM/input/change_orientation_operation.doc
@@ -16,10 +16,10 @@ locked).
 
 \n <b>Example:</b>
 
-\image html image38.gif
+\image html image38.png
 <center><em>Inward orientation</em></center>
 
-\image html image40.gif
+\image html image40.png
 <center><em>Outward orientation</em></center>
 
 */
diff --git a/doc/salome/gui/GEOM/input/creating_lcs.doc b/doc/salome/gui/GEOM/input/creating_lcs.doc
index 6b714f9c2..5f06f4ff3 100644
--- a/doc/salome/gui/GEOM/input/creating_lcs.doc
+++ b/doc/salome/gui/GEOM/input/creating_lcs.doc
@@ -35,6 +35,6 @@ and in 3D viewer.
 
 <b>Example:</b>
 
-\image html image145.jpg "Local Coordinate System"
+\image html image145.png "Local Coordinate System"
 
 */
\ No newline at end of file
diff --git a/doc/salome/gui/GEOM/input/creating_sketcher.doc b/doc/salome/gui/GEOM/input/creating_sketcher.doc
index f7be15bb6..2da54f5fa 100644
--- a/doc/salome/gui/GEOM/input/creating_sketcher.doc
+++ b/doc/salome/gui/GEOM/input/creating_sketcher.doc
@@ -65,7 +65,7 @@ is predefined and is equal to 90 degrees);</li>
 
 \n <b>Example:</b>
 
-\image html image204.jpg "Creation of a circle with sketcher"
+\image html image204.png "Creation of a circle with sketcher"
 
 Our <b>TUI Scripts</b> provide you with useful examples of the use of
 \ref tui_sketcher_page "Sketcher".
diff --git a/doc/salome/gui/GEOM/input/creating_vector.doc b/doc/salome/gui/GEOM/input/creating_vector.doc
index 331180e95..2b02312b6 100644
--- a/doc/salome/gui/GEOM/input/creating_vector.doc
+++ b/doc/salome/gui/GEOM/input/creating_vector.doc
@@ -23,7 +23,7 @@ coordinates</b> by its <b>End Point</b>.
 
 <b>Example:</b>
 
-\image html image34.gif "A vector by two points and a vector from the origin of coordinates"
+\image html image34.png "A vector by two points and a vector from the origin of coordinates"
 
 Our <b>TUI Scripts</b> provide you with useful examples of creation of 
 \ref tui_creation_vector "Basic Geometric Objects".
diff --git a/doc/salome/gui/GEOM/input/index.doc b/doc/salome/gui/GEOM/input/index.doc
index c5121cabb..96045dd6f 100644
--- a/doc/salome/gui/GEOM/input/index.doc
+++ b/doc/salome/gui/GEOM/input/index.doc
@@ -20,7 +20,7 @@ various algorithms;</li>
 Almost all geometry module functionalities are accessible via
 \subpage geompy_page "Geometry module Python Interface"
 
-\image html image3.jpg "Example of Geometry module usage for engineering tasks"
+\image html image3.png "Example of Geometry module usage for engineering tasks"
 
 
 */
diff --git a/doc/salome/gui/GEOM/input/modify_location_operation.doc b/doc/salome/gui/GEOM/input/modify_location_operation.doc
index 9ce13b3f8..8ad902a15 100644
--- a/doc/salome/gui/GEOM/input/modify_location_operation.doc
+++ b/doc/salome/gui/GEOM/input/modify_location_operation.doc
@@ -21,7 +21,7 @@ will be removed.
 is to the right and the modified cube with the Local Coordinate
 System in the center of it is to the left .
 
-\image html image30.gif
+\image html image30.png
 
 \n The second algorithm  modifies the location of an object using Start
 and End LSC, although the final position of the object will not
@@ -42,17 +42,17 @@ In this picture we see the initial cube with the global coordinate
 system and two LCS: LocalCS1 (GCS+100 along x-axis) and LocalCS2
 (GCS+200 along x-axis)
 
-\image html image1.gif
+\image html image1.png
 
 Selecting Start LCS = LCS1 and End LCS = LCS2, we obtain the
 translated cube at the position (100;0;0)
 
-\image html image2.gif
+\image html image21.png
 
 Selecting Start LCS = LCS2 and End LCS = LCS1, we obtain the
 translated cube at the position (-100;0;0)
 
-\image html image4.gif
+\image html image4.png
 
 The third algorithm modifies the location of an object using the Path object (Wire or Edge)
 and the Distance parameter (ranging from 0 to 1) defining  how far the object will move along the path.
diff --git a/doc/salome/gui/GEOM/input/propagate_operation.doc b/doc/salome/gui/GEOM/input/propagate_operation.doc
index 1c7c3482a..c730c93eb 100644
--- a/doc/salome/gui/GEOM/input/propagate_operation.doc
+++ b/doc/salome/gui/GEOM/input/propagate_operation.doc
@@ -18,9 +18,9 @@ is a shape to build propagation groups on.
 
 \n <b>Example:</b>
 
-\image html image15.jpg "The initial box"
+\image html image15.png "The initial box"
 
-\image html image16.jpg "The resulting edges"
+\image html image16.png "The resulting edges"
 
 Our <b>TUI Scripts</b> provide you with useful examples of the use of
 \ref tui_propagate "Blocks Operations".
diff --git a/doc/salome/gui/GEOM/input/sewing_operation.doc b/doc/salome/gui/GEOM/input/sewing_operation.doc
index 1c478822e..319dcd5b5 100644
--- a/doc/salome/gui/GEOM/input/sewing_operation.doc
+++ b/doc/salome/gui/GEOM/input/sewing_operation.doc
@@ -23,9 +23,9 @@ your shape:
 
 \n <b>Example:</b>
 
-\image html image112.jpg "The initial faces"
+\image html image112.png "The initial faces"
 
-\image html image113.jpg "The sewn faces"
+\image html image113.png "The sewn faces"
 
 Our <b>TUI Scripts</b> provide you with useful examples of the use of
 \ref tui_sewing "Repairing Operations".
diff --git a/doc/salome/gui/GEOM/input/shape_processing_operation.doc b/doc/salome/gui/GEOM/input/shape_processing_operation.doc
index ca438ada1..b10f35c6e 100644
--- a/doc/salome/gui/GEOM/input/shape_processing_operation.doc
+++ b/doc/salome/gui/GEOM/input/shape_processing_operation.doc
@@ -140,15 +140,15 @@ curves not having the same parameter.</li>
 
 \n <b>Example:</b>
 
-\image html image154.jpg
+\image html image154.png
 <center><em>Shape before applying Shape Processing (FixShape
 operator). View # 1.</em></center>
 
-\image html image156.jpg
+\image html image156.png
 <center><em>Shape before applying Shape Processing (FixShape
 operator). View # 2.</em></center>
 
-\image html image160.jpg
+\image html image160.png
 <center><em>The same shape after applying Shape
 Processing.</em></center>
 
diff --git a/doc/salome/gui/GEOM/input/suppress_holes_operation.doc b/doc/salome/gui/GEOM/input/suppress_holes_operation.doc
index d353f5f40..d31bab6c7 100644
--- a/doc/salome/gui/GEOM/input/suppress_holes_operation.doc
+++ b/doc/salome/gui/GEOM/input/suppress_holes_operation.doc
@@ -25,9 +25,9 @@ your shape:
 
 \n <b>Example:</b>
 
-\image html image109.jpg "The cone with a hole"
+\image html image109.png "The cone with a hole"
 
-\image html image110.jpg "The hole has been suppressed"
+\image html image110.png "The hole has been suppressed"
 
 Our <b>TUI Scripts</b> provide you with useful examples of the use of
 \ref tui_suppress_holes "Repairing Operations".
diff --git a/doc/salome/gui/GEOM/input/viewing_geom_obj.doc b/doc/salome/gui/GEOM/input/viewing_geom_obj.doc
index dd3e0fdbb..ce710f35e 100644
--- a/doc/salome/gui/GEOM/input/viewing_geom_obj.doc
+++ b/doc/salome/gui/GEOM/input/viewing_geom_obj.doc
@@ -50,7 +50,7 @@ color. By default it is black.
 \n\n Some of these functionalities are available through right-clicking
 on the viewer background:
 
-\image html image2.jpg <br></li>
+\image html image22.png <br></li>
 
 <li><b>Select Only</b> provides a filter for exclusive selection of objects of a certain type.</li>
 </ul>
diff --git a/doc/salome/gui/GEOM/input/working_with_groups.doc b/doc/salome/gui/GEOM/input/working_with_groups.doc
index ef9fe6f95..a2e7d5360 100644
--- a/doc/salome/gui/GEOM/input/working_with_groups.doc
+++ b/doc/salome/gui/GEOM/input/working_with_groups.doc
@@ -68,7 +68,7 @@ created, ShapeType is a type of shapes in the created group.
 
 <b>Example:</b>
 
-\image html image193.jpg "Groups on a cylinder"
+\image html image193.png "Groups on a cylinder"
 
 
 <br><h2>Edit a group</h2>