diff --git a/assets/img/using-framac-img.jpg b/assets/img/using-framac-img.jpg
deleted file mode 100644
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Binary files a/assets/img/using-framac-img.jpg and /dev/null differ
diff --git a/assets/img/using-framac-img.png b/assets/img/using-framac-img.png
new file mode 100755
index 0000000000000000000000000000000000000000..7c215f3cead99526f29d2e69a888ac3c0c996d7d
Binary files /dev/null and b/assets/img/using-framac-img.png differ
diff --git a/html/contact.html b/html/contact.html
old mode 100755
new mode 100644
diff --git a/html/get-frama-c.html b/html/get-frama-c.html
old mode 100755
new mode 100644
diff --git a/html/using-frama-c.html b/html/using-frama-c.html
old mode 100755
new mode 100644
index 9901cb57ac4a788a6d875fae7e210962cbfd3729..215265ad2627b4e27c12307fa1de1908b50652dc
--- a/html/using-frama-c.html
+++ b/html/using-frama-c.html
@@ -18,7 +18,7 @@ css: plugin
             <div class="usagePageContent">
               <div class="codeDemoHead usageCodeDemo">
                 <figure>
-                  <img src="/assets/img/using-framac-img.jpg" alt=
+                  <img src="/assets/img/using-framac-img.png" alt=
                   "Using Frama C">
                 </figure>
               </div>