diff --git a/CHANGELOG b/CHANGELOG
index 1a97681f1..55a100361 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -3,8 +3,9 @@
 --------------------------------------------------------------------------------
 - add hooks showDocumentAttribute and showDocumentContentAttribute in Search view
 - fix layout problems of select2 menu, add option for adding an icon to each option
-- better import for users from csv file
+- better import of users from csv file
 - fix various methods in restapi (Closes: #481)
+- add hooks showDocumentKeywords and showDocumentCategories
 
 --------------------------------------------------------------------------------
                      Changes in version 5.1.18
diff --git a/views/bootstrap/class.ViewDocument.php b/views/bootstrap/class.ViewDocument.php
index cdc976b5c..8555a8cc1 100644
--- a/views/bootstrap/class.ViewDocument.php
+++ b/views/bootstrap/class.ViewDocument.php
@@ -284,27 +284,47 @@ class SeedDMS_View_ViewDocument extends SeedDMS_Bootstrap_Style {
 <?php
 		}
 		if($document->getKeywords()) {
+			$arr = $this->callHook('showDocumentKeywords', $document);
+			if(is_array($arr)) {
+				echo "<tr>";
+				echo "<td>".$arr[0].":</td>";
+				echo "<td>".$arr[1]."</td>";
+				echo "</tr>";
+			} elseif(is_string($arr)) {
+				echo $arr;
+			} else {
 ?>
 		<tr>
 		<td><?php printMLText("keywords");?>:</td>
 		<td><?php print htmlspecialchars($document->getKeywords());?></td>
 		</tr>
 <?php
+			}
 		}
 		if($cats = $document->getCategories()) {
+			$arr = $this->callHook('showDocumentCategories', $document);
+			if(is_array($arr)) {
+				echo "<tr>";
+				echo "<td>".$arr[0].":</td>";
+				echo "<td>".$arr[1]."</td>";
+				echo "</tr>";
+			} elseif(is_string($arr)) {
+				echo $arr;
+			} else {
 ?>
 		<tr>
 		<td><?php printMLText("categories");?>:</td>
 		<td>
-		<?php
-			$ct = array();
-			foreach($cats as $cat)
-				$ct[] = htmlspecialchars($cat->getName());
-			echo implode(', ', $ct);
-		?>
+<?php
+				$ct = array();
+				foreach($cats as $cat)
+					$ct[] = htmlspecialchars($cat->getName());
+				echo implode(', ', $ct);
+?>
 		</td>
 		</tr>
 <?php
+			}
 		}
 ?>
 		<?php