diff --git a/screenshot.h b/screenshot.h
index 3c038221..3aaf5e60 100644
--- a/screenshot.h
+++ b/screenshot.h
@@ -10,28 +10,46 @@ public:
     explicit ScreenShot () : QObject() {}
     // Take a screenshot, convert it to a bitarray and return it with some metadata
     Q_INVOKABLE QVariantMap capture() {
-        QScreen *screen = QGuiApplication::primaryScreen();
-        // Virtual geometry grabs all pixels on the desktop, even with multiple monitors.
-        QRect g = screen->virtualGeometry();
-        QPixmap screenShot = screen->grabWindow(0, g.x(), g.y(), g.width(), g.height());
-        // Monochrome, no dither
-        QImage image = screenShot.toImage();
-        image = image.convertToFormat(QImage::Format_Mono, Qt::ThresholdDither);
         // Get all pixels as 1 (black) or 0 (white)
         QByteArray imageArray;
-        for (int row = 0; row < image.height(); ++row) {
-            for (int col = 0; col < image.width(); ++col) {
-                QRgb px = image.pixel(col, row);
-                if (px == 0xFF000000) {
-                    imageArray.append((char) 1);
-                } else {
+
+        // Dimensions of output image
+        int outputHeight = 0;
+        int outputWidth = 0;
+        for (QScreen *screen : QGuiApplication::screens()) {
+            outputWidth = std::max(outputWidth, screen->geometry().width());
+        }
+
+        for (QScreen *screen : QGuiApplication::screens()) {
+            QRect g = screen->geometry();
+            QPixmap screenShot = screen->grabWindow(0, 0, 0, g.width(), g.height());
+
+            // Monochrome, no dither
+            QImage image = screenShot.toImage();
+            image = image.convertToFormat(QImage::Format_Mono, Qt::ThresholdDither);
+
+            // Stack screens vertically in output image
+            outputHeight += image.height();
+            for (int row = 0; row < image.height(); ++row) {
+                for (int col = 0; col < image.width(); ++col) {
+                    QRgb px = image.pixel(col, row);
+                    if (px == 0xFF000000) {
+                        imageArray.append((char) 1);
+                    } else {
+                        imageArray.append((char) 0);
+                    }
+                }
+
+                // Pad smaller screens horizontally
+                for (int col = image.width(); col < outputWidth; ++col) {
                     imageArray.append((char) 0);
                 }
             }
         }
+
         QVariantMap map;
-        map.insert("width", image.width());
-        map.insert("height", image.height());
+        map.insert("width", outputWidth);
+        map.insert("height", outputHeight);
         map.insert("data", QString(imageArray.toBase64()));
         return map;
     }