diff --git a/documentation/manual/es-ES/src/main/docbook/content/architecture.xml b/documentation/manual/es-ES/src/main/docbook/content/architecture.xml
index 9d98dd12ff..91661c8ae8 100644
--- a/documentation/manual/es-ES/src/main/docbook/content/architecture.xml
+++ b/documentation/manual/es-ES/src/main/docbook/content/architecture.xml
@@ -14,7 +14,7 @@
                 <imagedata fileref="../images/overview.svg" format="SVG" align="center"/>
             </imageobject>
             <imageobject role="html">
-                <imagedata fileref="../images/overview.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/overview.png" format="PNG" align="center"/>
             </imageobject>
         </mediaobject>
 
@@ -37,7 +37,7 @@
                 <imagedata fileref="../images/lite.svg" format="SVG" align="center"/>
             </imageobject>
             <imageobject role="html">
-                <imagedata fileref="../images/lite.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/lite.png" format="PNG" align="center"/>
             </imageobject>
         </mediaobject>
 
@@ -51,7 +51,7 @@
                 <imagedata fileref="../images/full_cream.svg" format="SVG" align="center"/>
             </imageobject>
             <imageobject role="html">
-                <imagedata fileref="../images/full_cream.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/full_cream.png" format="PNG" align="center"/>
             </imageobject>
         </mediaobject>
 
diff --git a/documentation/manual/es-ES/src/main/docbook/content/example_mappings.xml b/documentation/manual/es-ES/src/main/docbook/content/example_mappings.xml
index 1ac017b185..fa9ef10097 100644
--- a/documentation/manual/es-ES/src/main/docbook/content/example_mappings.xml
+++ b/documentation/manual/es-ES/src/main/docbook/content/example_mappings.xml
@@ -17,10 +17,10 @@
 
         <mediaobject>
             <imageobject role="fo">
-                <imagedata fileref="../images/EmployerEmployee.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/EmployerEmployee.png" format="PNG" align="center"/>
             </imageobject>
             <imageobject role="html">
-                <imagedata fileref="../images/EmployerEmployee.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/EmployerEmployee.png" format="PNG" align="center"/>
             </imageobject>
         </mediaobject>
         
@@ -130,10 +130,10 @@ create sequence employer_id_seq]]></programlisting>
 
         <mediaobject>
             <imageobject role="fo">
-                <imagedata fileref="../images/AuthorWork.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/AuthorWork.png" format="PNG" align="center"/>
             </imageobject>
             <imageobject role="html">
-                <imagedata fileref="../images/AuthorWork.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/AuthorWork.png" format="PNG" align="center"/>
             </imageobject>
         </mediaobject>
         
@@ -252,10 +252,10 @@ alter table author_work
 
         <mediaobject>
             <imageobject role="fo">
-                <imagedata fileref="../images/CustomerOrderProduct.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/CustomerOrderProduct.png" format="PNG" align="center"/>
             </imageobject>
             <imageobject role="html">
-                <imagedata fileref="../images/CustomerOrderProduct.gif" format="GIF" align="center"/>
+                <imagedata fileref="../images/CustomerOrderProduct.png" format="PNG" align="center"/>
             </imageobject>
         </mediaobject>