diff --git a/htdocs/lib/functions.inc.php b/htdocs/lib/functions.inc.php
index f2b6ed2092e..d623ca2ab36 100644
--- a/htdocs/lib/functions.inc.php
+++ b/htdocs/lib/functions.inc.php
@@ -98,6 +98,12 @@ Function img_file($alt = "Voir")
   return '<img src="'.DOL_URL_ROOT.'/theme/'.MAIN_THEME.'/img/file.png" border="0" alt="'.$alt.'">';
 }
 
+Function img_pdf($alt = "Voir")
+{
+  return '<img src="'.DOL_URL_ROOT.'/theme/'.MAIN_THEME.'/img/pdf.png" border="0" alt="'.$alt.'">';
+}
+
+
 Function img_delete($alt = "Supprimer")
 {
   return '<img src="'.DOL_URL_ROOT.'/theme/'.MAIN_THEME.'/img/delete.png" border="0" alt="'.$alt.'" title="Supprimer">';