diff --git a/kmagzoomview.cpp b/kmagzoomview.cpp
--- a/kmagzoomview.cpp
+++ b/kmagzoomview.cpp
@@ -327,7 +327,8 @@
 
   p.translate(visibleWidth() / 2.0, visibleHeight() / 2.0);
   p.setMatrix(m_zoomMatrix, true);
-  p.translate(-m_coloredPixmap.width() / 2.0, -m_coloredPixmap.height() / 2.0);
+  const double ratio = 0.5 / m_coloredPixmap.devicePixelRatio();
+  p.translate(-m_coloredPixmap.width() * ratio, -m_coloredPixmap.height() * ratio);
   p.drawPixmap(QPoint(clipx-contentsX(), clipy-contentsY()), m_coloredPixmap);
   p.end();
 
diff --git a/main.cpp b/main.cpp
--- a/main.cpp
+++ b/main.cpp
@@ -38,6 +38,7 @@
 int main(int argc, char *argv[])
 {
   QApplication app(argc, argv);
+  app.setAttribute(Qt::AA_UseHighDpiPixmaps, true);
   KLocalizedString::setApplicationDomain("kmag");
 
   // about the application