diff --git a/messageviewer/src/viewer/webengine/mailwebenginepage.cpp b/messageviewer/src/viewer/webengine/mailwebenginepage.cpp
index f3790b9f..940635b4 100644
--- a/messageviewer/src/viewer/webengine/mailwebenginepage.cpp
+++ b/messageviewer/src/viewer/webengine/mailwebenginepage.cpp
@@ -1,71 +1,75 @@
 /*
    Copyright (C) 2016-2019 Laurent Montel <montel@kde.org>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 #include "mailwebenginepage.h"
 #include <QFontDatabase>
 #include <QWebEngineSettings>
 #include <QWebEngineProfile>
+#include <QtWebEngineWidgets>
 
 using namespace MessageViewer;
 
 MailWebEnginePage::MailWebEnginePage(QObject *parent)
     : WebEngineViewer::WebEnginePage(parent)
 {
     initialize();
 }
 
 void MailWebEnginePage::initialize()
 {
     settings()->setAttribute(QWebEngineSettings::JavascriptEnabled, false);
     settings()->setAttribute(QWebEngineSettings::PluginsEnabled, false);
     settings()->setAttribute(QWebEngineSettings::JavascriptCanOpenWindows, false);
     settings()->setAttribute(QWebEngineSettings::JavascriptCanAccessClipboard, false);
     settings()->setAttribute(QWebEngineSettings::LocalStorageEnabled, false);
     settings()->setAttribute(QWebEngineSettings::XSSAuditingEnabled, false);
     settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessRemoteUrls, false);
     settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessFileUrls, false);
     settings()->setAttribute(QWebEngineSettings::ErrorPageEnabled, false);
     settings()->setAttribute(QWebEngineSettings::HyperlinkAuditingEnabled, false);
     settings()->setAttribute(QWebEngineSettings::FullScreenSupportEnabled, false);
     settings()->setAttribute(QWebEngineSettings::WebGLEnabled, false);
     settings()->setAttribute(QWebEngineSettings::AutoLoadIconsForPage, false);
     settings()->setAttribute(QWebEngineSettings::Accelerated2dCanvasEnabled, false);
     settings()->setAttribute(QWebEngineSettings::WebGLEnabled, false);
 
     settings()->setAttribute(QWebEngineSettings::FocusOnNavigationEnabled, false);
     settings()->setAttribute(QWebEngineSettings::AllowRunningInsecureContent, false);
+#if QTWEBENGINEWIDGETS_VERSION >= QT_VERSION_CHECK(5, 13, 0)
+    settings()->setAttribute(QWebEngineSettings::PDFViewerEnabled, false);
+#endif
     profile()->setPersistentCookiesPolicy(QWebEngineProfile::NoPersistentCookies);
     profile()->setHttpCacheType(QWebEngineProfile::MemoryHttpCache);
 
     const QFontInfo font(QFontDatabase().systemFont(QFontDatabase::GeneralFont));
     settings()->setFontFamily(QWebEngineSettings::StandardFont, font.family());
     settings()->setFontSize(QWebEngineSettings::DefaultFontSize, font.pixelSize());
     connect(this, &QWebEnginePage::featurePermissionRequested,
             this, &MailWebEnginePage::slotFeaturePermissionRequested);
 }
 
 void MailWebEnginePage::setPrintElementBackground(bool printElementBackground)
 {
     settings()->setAttribute(QWebEngineSettings::PrintElementBackgrounds, printElementBackground);
 }
 
 void MailWebEnginePage::slotFeaturePermissionRequested(const QUrl &url, QWebEnginePage::Feature feature)
 {
     //Denied all permissions.
     setFeaturePermission(url, feature, QWebEnginePage::PermissionDeniedByUser);
 }
diff --git a/templateparser/src/templatewebenginepage.cpp b/templateparser/src/templatewebenginepage.cpp
index 053891e3..5834e269 100644
--- a/templateparser/src/templatewebenginepage.cpp
+++ b/templateparser/src/templatewebenginepage.cpp
@@ -1,54 +1,58 @@
 /*
    Copyright (C) 2017-2019 Laurent Montel <montel@kde.org>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #include "templatewebenginepage.h"
 #include <QWebEngineSettings>
 #include <QWebEngineProfile>
+#include <QtWebEngineWidgets>
 
 using namespace TemplateParser;
 
 TemplateWebEnginePage::TemplateWebEnginePage(QObject *parent)
     : QWebEnginePage(parent)
 {
     settings()->setAttribute(QWebEngineSettings::JavascriptEnabled, false);
     settings()->setAttribute(QWebEngineSettings::PluginsEnabled, false);
     settings()->setAttribute(QWebEngineSettings::JavascriptCanOpenWindows, false);
     settings()->setAttribute(QWebEngineSettings::JavascriptCanAccessClipboard, false);
     settings()->setAttribute(QWebEngineSettings::LocalStorageEnabled, false);
     settings()->setAttribute(QWebEngineSettings::XSSAuditingEnabled, false);
     settings()->setAttribute(QWebEngineSettings::ErrorPageEnabled, false);
     settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessRemoteUrls, false);
     settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessFileUrls, false);
     settings()->setAttribute(QWebEngineSettings::HyperlinkAuditingEnabled, false);
     settings()->setAttribute(QWebEngineSettings::FullScreenSupportEnabled, false);
     settings()->setAttribute(QWebEngineSettings::ScreenCaptureEnabled, false);
     settings()->setAttribute(QWebEngineSettings::WebGLEnabled, false);
     settings()->setAttribute(QWebEngineSettings::AutoLoadIconsForPage, false);
     settings()->setAttribute(QWebEngineSettings::Accelerated2dCanvasEnabled, false);
     settings()->setAttribute(QWebEngineSettings::WebGLEnabled, false);
 
     settings()->setAttribute(QWebEngineSettings::FocusOnNavigationEnabled, false);
     settings()->setAttribute(QWebEngineSettings::AllowRunningInsecureContent, false);
+#if QTWEBENGINEWIDGETS_VERSION >= QT_VERSION_CHECK(5, 13, 0)
+    settings()->setAttribute(QWebEngineSettings::PDFViewerEnabled, false);
+#endif
     profile()->setPersistentCookiesPolicy(QWebEngineProfile::NoPersistentCookies);
     profile()->setHttpCacheType(QWebEngineProfile::MemoryHttpCache);
 }
 
 TemplateWebEnginePage::~TemplateWebEnginePage()
 {
 }