diff --git a/extensions/extrawindow.cpp b/extensions/extrawindow.cpp
index de696bd..ae80b93 100644
--- a/extensions/extrawindow.cpp
+++ b/extensions/extrawindow.cpp
@@ -25,11 +25,11 @@ public:
 		display->setTextInteractionFlags(Qt::TextSelectableByMouse);
 		display->setAlignment(Qt::AlignTop);
 		display->setWordWrap(true);
-		display->setMaximumHeight(600);
+		display->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
 		setWindowFlags(Qt::FramelessWindowHint);
 		setAttribute(Qt::WA_TranslucentBackground);
 		setSizeGripEnabled(true);
-		resize(400, 1);
+		resize(400, 300);
 		show();
 
 		auto setBackgroundColor = [=](QColor color)
@@ -60,7 +60,14 @@ public:
 			SetWindowPos((HWND)winId(), topmost ? HWND_TOPMOST : HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
 			settings->setValue(TOPMOST, topmost);
 		};
+		auto setLock = [=](bool lock)
+		{
+			locked = lock;
+			setSizeGripEnabled(!lock);
+			settings->setValue(SIZE_LOCK, lock);
+		};
 		setGeometry(settings->value(WINDOW, geometry()).toRect());
+		setLock(settings->value(SIZE_LOCK, false).toBool());
 		setTopmost(settings->value(TOPMOST, false).toBool());
 		setFontSize(settings->value(FONT_SIZE, 16).toInt());
 		setBackgroundColor(settings->value(BG_COLOR, palette().window().color()).value<QColor>());
@@ -70,6 +77,9 @@ public:
 		auto topmost = menu->addAction(TOPMOST, setTopmost);
 		topmost->setCheckable(true);
 		topmost->setChecked(settings->value(TOPMOST, false).toBool());
+		auto lock = menu->addAction(SIZE_LOCK, setLock);
+		lock->setCheckable(true);
+		lock->setChecked(settings->value(SIZE_LOCK, false).toBool());
 		menu->addAction(BG_COLOR, [=] { setBackgroundColor(QColorDialog::getColor(bgColor, this, BG_COLOR, QColorDialog::ShowAlphaChannel)); });
 		menu->addAction(TEXT_COLOR, [=] { setTextColor(QColorDialog::getColor(display->palette().windowText().color(), this, TEXT_COLOR, QColorDialog::ShowAlphaChannel)); });
 		menu->addAction(FONT_SIZE, [=] { setFontSize(QInputDialog::getInt(this, FONT_SIZE, "", display->font().pointSize(), 0, INT_MAX, 1, nullptr, Qt::WindowCloseButtonHint)); });
@@ -87,24 +97,19 @@ private:
 		QPainter(this).fillRect(rect(), bgColor);
 	}
 
-	void resizeEvent(QResizeEvent* event) override
-	{
-		display->setMaximumWidth(event->size().width());
-		QDialog::resizeEvent(event);
-	}
-
-	void mousePressEvent(QMouseEvent* event)
+	void mousePressEvent(QMouseEvent* event) override
 	{
 		oldPos = event->globalPos();
 	}
 
-	void mouseMoveEvent(QMouseEvent* event)
+	void mouseMoveEvent(QMouseEvent* event) override
 	{
 		const QPoint delta = event->globalPos() - oldPos;
-		move(x() + delta.x(), y() + delta.y());
+		if (!locked) move(x() + delta.x(), y() + delta.y());
 		oldPos = event->globalPos();
 	}
 
+	bool locked;
 	QColor bgColor;
 	QPoint oldPos;
 }*window = nullptr;
diff --git a/include/text.h b/include/text.h
index 4c284dc..aae5a1c 100644
--- a/include/text.h
+++ b/include/text.h
@@ -52,10 +52,11 @@ extern const char* GOOGLE_PROMPT;
 extern const wchar_t* TOO_MANY_TRANS_REQUESTS;
 extern const wchar_t* TRANSLATION_ERROR;
 extern const char* EXTRA_WINDOW_INFO;
+extern const char* TOPMOST;
+extern const char* SIZE_LOCK;
 extern const char* BG_COLOR;
 extern const char* TEXT_COLOR;
 extern const char* FONT_SIZE;
-extern const char* TOPMOST;
 extern const char* LUA_INTRO;
 extern const char* LOAD_LUA_SCRIPT;
 extern const wchar_t* LUA_ERROR;
diff --git a/text.cpp b/text.cpp
index 08952a4..8e989c1 100644
--- a/text.cpp
+++ b/text.cpp
@@ -81,10 +81,11 @@ const wchar_t* TOO_MANY_TRANS_REQUESTS = L"Too many translation requests: refuse
 const wchar_t* TRANSLATION_ERROR = L"Error while translating";
 const char* EXTRA_WINDOW_INFO = u8R"(Right click to change settings
 Click and drag on window edges to move, or the bottom right corner to resize)";
+const char* TOPMOST = u8"Always on Top";
+const char* SIZE_LOCK = u8"Size Locked";
 const char* BG_COLOR = u8"Background Color";
 const char* TEXT_COLOR = u8"Text Color";
 const char* FONT_SIZE = u8"Font Size";
-const char* TOPMOST = u8"Always on Top";
 const char* LUA_INTRO = u8R"(--[[
 ProcessSentence is called each time Textractor receives a sentence of text.