diff --git a/ChangeLog b/ChangeLog
index 4ebc4553fd..e36d50557e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,7 @@ phpMyAdmin - ChangeLog
 ======================
 
 4.1.3.0 (not yet released)
+- bug #3938 PDFDefaultPageSize doc and easy configurability
 
 4.1.2.0 (2013-12-23)
 - bug #4178 Quick edit for BIT type does not work
diff --git a/libraries/config.values.php b/libraries/config.values.php
index b8767710b4..0c40c7995c 100644
--- a/libraries/config.values.php
+++ b/libraries/config.values.php
@@ -66,6 +66,13 @@ $cfg_db['TabsMode'] = array(
     'text'  => __('Text'),
     'both'  => __('Both')
 );
+$cfg_db['PDFDefaultPageSize'] = array(
+    'A3'     => 'A3',
+    'A4'     => 'A4',
+    'A5'     => 'A5',
+    'letter' => 'letter',
+    'legal'  => 'legal'
+);
 $cfg_db['ActionLinksMode'] = array(
     'icons' => __('Icons'),
     'text'  => __('Text'),
diff --git a/libraries/config/messages.inc.php b/libraries/config/messages.inc.php
index 56190e4cf2..fd281f3743 100644
--- a/libraries/config/messages.inc.php
+++ b/libraries/config/messages.inc.php
@@ -227,6 +227,10 @@ $strConfigForm_TableStructure = __('Table structure');
 $strConfigForm_TableStructure_desc = __('Settings for the table structure (list of columns)');
 $strConfigForm_Tabs = __('Tabs');
 $strConfigForm_Tabs_desc = __('Choose how you want tabs to work');
+$strConfigForm_DisplayRelationalSchema = __('Display relational schema');
+$strConfigForm_DisplayRelationalSchema_desc = ''; 
+$strConfigPDFDefaultPageSize_name = __('Paper size');
+$strConfigPDFDefaultPageSize_desc = ''; 
 $strConfigForm_Text_fields = __('Text fields');
 $strConfigForm_Text_fields_desc = __('Customize text input fields');
 $strConfigForm_Texy = __('Texy! text');
diff --git a/libraries/config/user_preferences.forms.php b/libraries/config/user_preferences.forms.php
index 341045044c..e97bd34df9 100644
--- a/libraries/config/user_preferences.forms.php
+++ b/libraries/config/user_preferences.forms.php
@@ -133,6 +133,9 @@ $forms['Main_panel']['Tabs'] = array(
     'DefaultTabServer',
     'DefaultTabDatabase',
     'DefaultTabTable');
+$forms['Main_panel']['DisplayRelationalSchema'] = array(
+    'PDFDefaultPageSize');
+
 $forms['Import']['Import_defaults'] = array(
     'Import/format',
     'Import/charset',