diff --git a/pdf_pages.php b/pdf_pages.php
index c9759e33f..4d7376ac3 100644
--- a/pdf_pages.php
+++ b/pdf_pages.php
@@ -10,7 +10,7 @@
  */
 require_once './libraries/common.inc.php';
 require_once './libraries/db_common.inc.php';
-
+require './libraries/StorageEngine.class.php';
 
 /**
  * Settings for relation stuff
@@ -85,26 +85,29 @@ if ($cfgRelation['pdfwork']) {
 
                 // A u t o m a t i c    l a y o u t
                 // ================================
-                if (isset($auto_layout_internal) || isset($auto_layout_innodb)) {
+                if (isset($auto_layout_internal) || isset($auto_layout_foreign)) {
                     $all_tables = array();
                 }
 
-                if (isset($auto_layout_innodb)) {
+                if (isset($auto_layout_foreign)) {
                     // get the tables list
                     $tables = PMA_DBI_get_tables_full($db);
-                    // find the InnoDB ones
-                    $innodb_tables = array();
+                    // find the ones who support FOREIGN KEY; it's not 
+                    // important that we group together InnoDB tables
+                    // and PBXT tables, as this logic is just to put
+                    // the tables on the layout, not to determine relations 
+                    $foreignkey_tables = array();
                     foreach($tables as $table_name => $table_properties) {
-                        if ($table_properties['ENGINE'] == 'InnoDB') {
-                            $innodb_tables[] = $table_name;
+                        if (PMA_foreignkey_supported($table_properties['ENGINE'])) {
+                            $foreignkey_tables[] = $table_name;
                         }
                     }
-                    $all_tables = $innodb_tables;
+                    $all_tables = $foreignkey_tables;
                     // could be improved by finding the tables which have the
-                    // most references keys and place them at the beginning
+                    // most references keys and placing them at the beginning
                     // of the array (so that they are all center of schema)
-                    unset($tables, $innodb_tables);
-                } // endif auto_layout_innodb
+                    unset($tables, $foreignkey_tables);
+                } // endif auto_layout_foreign
 
                 if (isset($auto_layout_internal)) {
                     // get the tables that have relations, by descending
@@ -147,7 +150,7 @@ if ($cfgRelation['pdfwork']) {
                     } // endif there are master tables
                 } // endif auto_layout_internal
 
-                if (isset($auto_layout_internal) || isset($auto_layout_innodb)) {
+                if (isset($auto_layout_internal) || isset($auto_layout_foreign)) {
                     // now generate the coordinates for the schema,
                     // in a clockwise spiral
 
@@ -303,9 +306,12 @@ if ($cfgRelation['pdfwork']) {
     <input type="hidden" name="do" value="createpage" />
     <input type="text" name="newpage" size="20" maxlength="50" />
        <input type="checkbox" name="auto_layout_internal" />
-   <?php echo '(' . $strAutomaticLayout . ' / ' . $strInternalRelations . ')' . "\n"; ?>
-        <input type="checkbox" name="auto_layout_innodb" />
-    <?php echo '(' . $strAutomaticLayout . ' / InnoDB)' . "\n"; ?>
+<?php echo '(' . $strAutomaticLayout . ' / ' . $strInternalRelations . ')';
+    if (PMA_StorageEngine::isValid('InnoDB') || PMA_StorageEngine::isValid('PBXT')) {
+        echo '<input type="checkbox" name="auto_layout_foreign" />'
+            . '(' . $strAutomaticLayout . ' / FOREIGN KEY)';
+    }
+?>
         <input type="submit" value="<?php echo $strGo; ?>" />
     </fieldset>
 </form>