diff --git a/sources/configpages.cpp b/sources/configpages.cpp
index 33033b7b8..1180f9eee 100644
--- a/sources/configpages.cpp
+++ b/sources/configpages.cpp
@@ -186,7 +186,7 @@ GeneralConfigurationPage::GeneralConfigurationPage(QWidget *parent) : ConfigPage
 	bool use_system_colors = settings.value("usesystemcolors", "true").toBool();
 	bool tabbed = settings.value("diagrameditor/viewmode", "tabbed") == "tabbed";
 	bool integrate_elements = settings.value("diagrameditor/integrate-elements", true).toBool();
-	bool grid_outside = settings.value("diagrameditor/draw-grid-outside-of-border", false).toBool();
+	bool zoom_out_folio = settings.value("diagrameditor/zoom-out-beyond-of-folio", false).toBool();
 	bool use_trackpad = settings.value("diagramview/gestures", false).toBool();
 	bool highlight_integrated_elements = settings.value("diagrameditor/highlight-integrated-elements", true).toBool();
 	QString default_element_informations = settings.value("elementeditor/default-informations", "").toString();
@@ -197,7 +197,7 @@ GeneralConfigurationPage::GeneralConfigurationPage(QWidget *parent) : ConfigPage
     windowed_mode_ = new QRadioButton(tr("Utiliser des fenêtres (appliqué au prochain lancement de QElectroTech)"), projects_view_mode_);
     tabbed_mode_ = new QRadioButton(tr("Utiliser des onglets (appliqué au prochain lancement de QElectroTech)"), projects_view_mode_);
 	use_trackpad_ = new QCheckBox(tr("Utiliser les gestes du pavé tactile"), projects_view_mode_);
-    m_grid_outside_border = new QCheckBox(tr("Dessiner la grille au-delà du cadre du folio"), this);
+	m_zoom_out_beyond_folio = new QCheckBox(tr("Autoriser le dézoom au delà du folio"), this);
 	
 	elements_management_ = new QGroupBox(tr("Gestion des éléments"), this);
 	integrate_elements_ = new QCheckBox(tr("Intégrer automatiquement les éléments dans les projets (recommandé)"));
@@ -222,7 +222,7 @@ GeneralConfigurationPage::GeneralConfigurationPage(QWidget *parent) : ConfigPage
 		windowed_mode_ -> setChecked(true);
 	}
 
-	m_grid_outside_border -> setChecked(grid_outside);
+	m_zoom_out_beyond_folio -> setChecked(zoom_out_folio);
 	
 	integrate_elements_ -> setChecked(integrate_elements);
 	highlight_integrated_elements_ -> setChecked(highlight_integrated_elements);
@@ -235,7 +235,7 @@ GeneralConfigurationPage::GeneralConfigurationPage(QWidget *parent) : ConfigPage
 	QVBoxLayout *projects_view_mode_layout = new QVBoxLayout;
 	projects_view_mode_layout -> addWidget(windowed_mode_);
 	projects_view_mode_layout -> addWidget(tabbed_mode_);
-    projects_view_mode_layout -> addWidget(m_grid_outside_border);
+	projects_view_mode_layout -> addWidget(m_zoom_out_beyond_folio);
     projects_view_mode_layout -> addWidget(use_trackpad_);
 	projects_view_mode_ -> setLayout(projects_view_mode_layout);
 	
@@ -300,7 +300,7 @@ void GeneralConfigurationPage::applyConf() {
 	settings.setValue("diagrameditor/highlight-integrated-elements", highlight_integrated_elements_ -> isChecked());
 	settings.setValue("elementeditor/default-informations", default_element_infos_textfield_ -> toPlainText());
 	settings.setValue("diagramview/gestures", use_trackpad_ -> isChecked());
-	settings.setValue("diagrameditor/draw-grid-outside-of-border", m_grid_outside_border->isChecked());
+	settings.setValue("diagrameditor/zoom-out-beyond-of-folio", m_zoom_out_beyond_folio->isChecked());
 }
 
 /// @return l'icone de cette page
diff --git a/sources/configpages.h b/sources/configpages.h
index 29d314095..bad988820 100644
--- a/sources/configpages.h
+++ b/sources/configpages.h
@@ -89,7 +89,7 @@ class GeneralConfigurationPage : public ConfigPage {
 	QGroupBox *projects_view_mode_;
 	QRadioButton *windowed_mode_;
 	QRadioButton *tabbed_mode_;
-	QCheckBox *m_grid_outside_border;
+	QCheckBox *m_zoom_out_beyond_folio;
 	QLabel *warning_view_mode_;
 	QGroupBox *elements_management_;
 	QCheckBox *integrate_elements_;
diff --git a/sources/diagram.cpp b/sources/diagram.cpp
index ea57394d9..80af3c65b 100644
--- a/sources/diagram.cpp
+++ b/sources/diagram.cpp
@@ -139,7 +139,8 @@ void Diagram::drawBackground(QPainter *p, const QRectF &r) {
 
 		p -> setBrush(Qt::NoBrush);
 
-		QRectF rect = QETApp::settings().value("diagrameditor/draw-grid-outside-of-border", false).toBool() ?
+			//If user allow zoom out beyond of folio, we draw grid outside of border.
+		QRectF rect = QETApp::settings().value("diagrameditor/zoom-out-beyond-of-folio", false).toBool() ?
 						  r :
 						  border_and_titleblock.insideBorderRect().intersected(r);
 
diff --git a/sources/diagramview.cpp b/sources/diagramview.cpp
index e5bf4d14a..6d684cea8 100644
--- a/sources/diagramview.cpp
+++ b/sources/diagramview.cpp
@@ -350,41 +350,46 @@ void DiagramView::setSelectionMode() {
 }
 
 /**
-	Agrandit le schema (+33% = inverse des -25 % de zoomMoins())
-*/
+ * @brief DiagramView::zoomIn
+ * Zoom in the current folio
+ */
 void DiagramView::zoomIn() {
-	scale(4.0/3.0, 4.0/3.0);
+	scale(1.15, 1.15);
 	adjustGridToZoom();
 }
 
 /**
-	Retrecit le schema (-25% = inverse des +33 % de zoomPlus())
-*/
+ * @brief DiagramView::zoomOut
+ * Zoom out the current folio.
+ * If zoom-out-beyond-of-folio is true in common setting, the zoom out is infinite
+ * else zoom out is stopped when the entire folio is visible.
+ */
 void DiagramView::zoomOut() {
-	scale(0.75, 0.75);
-	if ((mapFromScene(0,0).rx() == 0) && (mapFromScene(0,0).ry() == 0)){
-		fitInView(sceneRect(), Qt::KeepAspectRatio);
-	}
+	if (QETApp::settings().value("diagrameditor/zoom-out-beyond-of-folio", false).toBool() ||
+		(horizontalScrollBar()->maximum() || verticalScrollBar()->maximum()) )
+		scale(0.85, 0.85);
+
 	adjustGridToZoom();
 }
 
 /**
-	Agrandit le schema avec le trackpad
-*/
+ * @brief DiagramView::zoomInSlowly
+ * Like zoomIn but more slowly
+ */
 void DiagramView::zoomInSlowly() {
 	scale(1.02, 1.02);
 	adjustGridToZoom();
 }
 
 /**
-	Retrecit le schema avec le trackpad
-*/
+ * @brief DiagramView::zoomOutSlowly
+ * Like zoomOut but more slowly
+ */
 void DiagramView::zoomOutSlowly() {
-	scale(0.98, 0.98);
-    // Interdit le dezoome plus grand que le folio
-	if ((mapFromScene(0,0).rx() == 0) && (mapFromScene(0,0).ry() == 0)){
-		fitInView(sceneRect(), Qt::KeepAspectRatio);
-	}
+	if (QETApp::settings().value("diagrameditor/zoom-out-beyond-of-folio", false).toBool() ||
+		(horizontalScrollBar()->maximum() || verticalScrollBar()->maximum()) )
+		scale(0.98, 0.98);
+
 	adjustGridToZoom();
 }
 
@@ -780,8 +785,6 @@ void DiagramView::adjustSceneRect()
 {
 	QRectF scene_rect = scene->sceneRect();
 	scene_rect.adjust(-Diagram::margin, -Diagram::margin, Diagram::margin, Diagram::margin);
-	scene_rect.setWidth(scene_rect.width()*2);
-	scene_rect.setHeight(scene_rect.height()*2);
 	setSceneRect(scene_rect);
 }