diff --git a/src/Gui/DlgSettingsDocument.ui b/src/Gui/DlgSettingsDocument.ui
index aec7ef61d5..4c232526bf 100644
--- a/src/Gui/DlgSettingsDocument.ui
+++ b/src/Gui/DlgSettingsDocument.ui
@@ -356,7 +356,79 @@ automatically run a file recovery when it is started.</string>
         </property>
        </widget>
       </item>
+      <item row="6" column="0">
+       <layout class="QHBoxLayout" name="horizontalLayout_3">
+        <property name="leftMargin">
+         <number>5</number>
+        </property>
+        <property name="topMargin">
+         <number>6</number>
+        </property>
+        <item>
+         <widget class="QLabel" name="label_6">
+          <property name="text">
+           <string>Size of thumbnail</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer>
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeType">
+           <enum>QSizePolicy::Maximum</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>91</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+        <item>
+         <widget class="Gui::PrefSpinBox" name="prefThumbnailSize">
+          <property name="toolTip">
+           <string>Sets the size of the thumbnail that is stored in the document.
+Common sizes are 128, 256 and 512</string>
+          </property>
+          <property name="minimum">
+           <number>64</number>
+          </property>
+          <property name="maximum">
+           <number>512</number>
+          </property>
+          <property name="prefEntry" stdset="0">
+           <cstring>ThumbnailSize</cstring>
+          </property>
+          <property name="prefPath" stdset="0">
+           <cstring>Document</cstring>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
       <item row="7" column="0">
+       <widget class="Gui::PrefCheckBox" name="prefAddLogo">
+        <property name="toolTip">
+         <string>The program logo will be added to the thumbnail</string>
+        </property>
+        <property name="text">
+         <string>Add the program logo to the generated thumbnail</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+        <property name="prefEntry" stdset="0">
+         <cstring>AddThumbnailLogo</cstring>
+        </property>
+        <property name="prefPath" stdset="0">
+         <cstring>Document</cstring>
+        </property>
+       </widget>
+      </item>
+      <item row="8" column="0">
        <layout class="QHBoxLayout">
         <property name="spacing">
          <number>6</number>
@@ -423,7 +495,7 @@ automatically run a file recovery when it is started.</string>
         </item>
        </layout>
       </item>
-      <item row="8" column="0">
+      <item row="9" column="0">
        <layout class="QHBoxLayout">
         <property name="spacing">
          <number>6</number>
@@ -479,25 +551,6 @@ get date suffix according to the specified format</string>
         </item>
        </layout>
       </item>
-      <item row="6" column="0">
-       <widget class="Gui::PrefCheckBox" name="prefAddLogo">
-        <property name="toolTip">
-         <string>The program logo will be added to the thumbnail</string>
-        </property>
-        <property name="text">
-         <string>Add the program logo to the generated thumbnail</string>
-        </property>
-        <property name="checked">
-         <bool>true</bool>
-        </property>
-        <property name="prefEntry" stdset="0">
-         <cstring>AddThumbnailLogo</cstring>
-        </property>
-        <property name="prefPath" stdset="0">
-         <cstring>Document</cstring>
-        </property>
-       </widget>
-      </item>
      </layout>
     </widget>
    </item>
diff --git a/src/Gui/DlgSettingsDocumentImp.cpp b/src/Gui/DlgSettingsDocumentImp.cpp
index 4a463f8df4..2a5fe4a4fc 100644
--- a/src/Gui/DlgSettingsDocumentImp.cpp
+++ b/src/Gui/DlgSettingsDocumentImp.cpp
@@ -77,6 +77,7 @@ void DlgSettingsDocumentImp::saveSettings()
     ui->prefSaveTransaction->onSave();
     ui->prefDiscardTransaction->onSave();
     ui->prefSaveThumbnail->onSave();
+    ui->prefThumbnailSize->onSave();
     ui->prefAddLogo->onSave();
     ui->prefSaveBackupFiles->onSave();
     ui->prefCountBackupFiles->onSave();
@@ -110,6 +111,7 @@ void DlgSettingsDocumentImp::loadSettings()
     ui->prefSaveTransaction->onRestore();
     ui->prefDiscardTransaction->onRestore();
     ui->prefSaveThumbnail->onRestore();
+    ui->prefThumbnailSize->onRestore();
     ui->prefAddLogo->onRestore();
     ui->prefSaveBackupFiles->onRestore();
     ui->prefCountBackupFiles->onRestore();