diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index 4ac039121..57579cc70 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -377,8 +377,9 @@ LRESULT Notepad_plus::init(HWND hwnd)
 	//--Splitter Section--//
 	bool isVertical = (nppGUI._splitterPos == POS_VERTICAL);
 
+	int splitterSizeDyn = nppParam._dpiManager.scaleX(splitterSize);
 	_subSplitter.init(_pPublicInterface->getHinst(), hwnd);
-	_subSplitter.create(&_mainDocTab, &_subDocTab, 8, SplitterMode::DYNAMIC, 50, isVertical);
+	_subSplitter.create(&_mainDocTab, &_subDocTab, splitterSizeDyn, SplitterMode::DYNAMIC, 50, isVertical);
 
 	//--Status Bar Section--//
 	bool willBeShown = nppGUI._statusBarShow;
@@ -4165,8 +4166,8 @@ void Notepad_plus::dockUserDlg()
             pWindow = &_subSplitter;
         else
             pWindow = _pDocTab;
-
-        _pMainSplitter->create(pWindow, ScintillaEditView::getUserDefineDlg(), 8, SplitterMode::RIGHT_FIX, 45);
+		int splitterSizeDyn = NppParameters::getInstance()._dpiManager.scaleX(splitterSize);
+        _pMainSplitter->create(pWindow, ScintillaEditView::getUserDefineDlg(), splitterSizeDyn, SplitterMode::RIGHT_FIX, 45);
     }
 
     if (bothActive())
diff --git a/PowerEditor/src/Notepad_plus_Window.h b/PowerEditor/src/Notepad_plus_Window.h
index 3b21f69ec..bec557b4b 100644
--- a/PowerEditor/src/Notepad_plus_Window.h
+++ b/PowerEditor/src/Notepad_plus_Window.h
@@ -16,9 +16,11 @@
 #pragma once
 #include "Notepad_plus.h"
 
+const int splitterSize = 8;
+
 const TCHAR COMMAND_ARG_HELP[] = TEXT("Usage :\r\
 \r\
-notepad++ [--help] [-multiInst] [-noPlugin] [-lLanguage] [-LlangCode] [-nLineNumber] [-cColumnNumber] [-pPosition] [-xLeftPos] [-yTopPos] [-nosession] [-notabbar] [-ro] [-systemtray] [-loadingTime] [-alwaysOnTop] [-openSession] [-r] [-qn=\"Easter egg name\" | -qt=\"a text to display.\" | -qf=\"D:\\my quote.txt\"] [-qSpeed1|2|3] [-quickPrint] [-settingsDir=\"d:\\your settings dir\\\"] [-openFoldersAsWorkspace]  [-titleAdd=\"additional title bar text\"][filePath]\r\
+notepad++ [--help] [-multiInst] [-noPlugin] [-lLanguage] [-udl=\"My UDL Name\"] [-LlangCode] [-nLineNumber] [-cColumnNumber] [-pPosition] [-xLeftPos] [-yTopPos] [-nosession] [-notabbar] [-ro] [-systemtray] [-loadingTime] [-alwaysOnTop] [-openSession] [-r] [-qn=\"Easter egg name\" | -qt=\"a text to display.\" | -qf=\"D:\\my quote.txt\"] [-qSpeed1|2|3] [-quickPrint] [-settingsDir=\"d:\\your settings dir\\\"] [-openFoldersAsWorkspace]  [-titleAdd=\"additional title bar text\"][filePath]\r\
 \r\
 --help : This help message\r\
 -multiInst : Launch another Notepad++ instance\r\
diff --git a/PowerEditor/src/NppCommands.cpp b/PowerEditor/src/NppCommands.cpp
index 522daa353..9905367dc 100644
--- a/PowerEditor/src/NppCommands.cpp
+++ b/PowerEditor/src/NppCommands.cpp
@@ -1545,8 +1545,8 @@ void Notepad_plus::command(int id)
                             pWindow = &_subSplitter;
                         else
                             pWindow = _pDocTab;
-
-                        _pMainSplitter->create(pWindow, ScintillaEditView::getUserDefineDlg(), 8, SplitterMode::RIGHT_FIX, 45);
+						int splitterSizeDyn = NppParameters::getInstance()._dpiManager.scaleX(splitterSize);
+                        _pMainSplitter->create(pWindow, ScintillaEditView::getUserDefineDlg(), splitterSizeDyn, SplitterMode::RIGHT_FIX, 45);
                     }
 
 					_pMainWindow = _pMainSplitter;
diff --git a/PowerEditor/src/WinControls/SplitterContainer/Splitter.cpp b/PowerEditor/src/WinControls/SplitterContainer/Splitter.cpp
index ea2517b94..d9584a900 100644
--- a/PowerEditor/src/WinControls/SplitterContainer/Splitter.cpp
+++ b/PowerEditor/src/WinControls/SplitterContainer/Splitter.cpp
@@ -18,6 +18,7 @@
 #include <stdexcept>
 #include <windows.h>
 #include "Splitter.h"
+#include "Parameters.h"
 #include "NppDarkMode.h"
 
 bool Splitter::_isHorizontalRegistered = false;
@@ -541,7 +542,9 @@ void Splitter::drawSplitter()
 		hBrushTop = ::GetSysColorBrush(COLOR_3DSHADOW);
 	}
 
-	if ((_splitterSize >= 4) && (_dwFlags & SV_RESIZEWTHPERCNT))
+	DPIManager& dpiMgr = NppParameters::getInstance()._dpiManager;
+
+	if ((_splitterSize >= dpiMgr.scaleX(4)) && (_dwFlags & SV_RESIZEWTHPERCNT))
 	{
 		adjustZoneToDraw(TLrc, ZONE_TYPE::topLeft);
 		adjustZoneToDraw(BRrc, ZONE_TYPE::bottomRight);
@@ -551,18 +554,18 @@ void Splitter::drawSplitter()
 	if (isVertical())
 	{
 		rcToDraw2.top    = (_dwFlags & SV_RESIZEWTHPERCNT) ? _clickZone2TL.bottom : 0;
-		rcToDraw2.bottom = rcToDraw2.top + 2;
+		rcToDraw2.bottom = rcToDraw2.top + dpiMgr.scaleX(2);
 
-		rcToDraw1.top    = rcToDraw2.top + 1;
-		rcToDraw1.bottom = rcToDraw1.top + 2;
+		rcToDraw1.top    = rcToDraw2.top + dpiMgr.scaleX(1);
+		rcToDraw1.bottom = rcToDraw1.top + dpiMgr.scaleX(2);
 	}
 	else
 	{
-		rcToDraw2.top    = 1;
-		rcToDraw2.bottom = 3;
+		rcToDraw2.top    = dpiMgr.scaleX(1);
+		rcToDraw2.bottom = dpiMgr.scaleX(3);
 
-		rcToDraw1.top    = 2;
-		rcToDraw1.bottom = 4;
+		rcToDraw1.top    = dpiMgr.scaleX(2);
+		rcToDraw1.bottom = dpiMgr.scaleX(4);
 	}
 
 	int bottom = 0;
@@ -575,39 +578,40 @@ void Splitter::drawSplitter()
 	{
 		if (isVertical())
 		{
-			rcToDraw2.left  = 1;
-			rcToDraw2.right = 3;
+			rcToDraw2.left  = dpiMgr.scaleX(1);
+			rcToDraw2.right = dpiMgr.scaleX(3);
 
-			rcToDraw1.left  = 2;
-			rcToDraw1.right = 4;
+			rcToDraw1.left  = dpiMgr.scaleX(2);
+			rcToDraw1.right = dpiMgr.scaleX(4);
 		}
 		else
 		{
 			rcToDraw2.left = _clickZone2TL.right;
-			rcToDraw2.right = rcToDraw2.left + 2;
+			rcToDraw2.right = rcToDraw2.left + dpiMgr.scaleX(2);
 
 			rcToDraw1.left = rcToDraw2.left;
-			rcToDraw1.right = rcToDraw1.left + 2;
+			rcToDraw1.right = rcToDraw1.left + dpiMgr.scaleX(2);
 		}
 
+		int n = dpiMgr.scaleX(4);
 		while (rcToDraw1.right <= (isVertical() ? rc.right : rc.right - _clickZone2BR.right))
 		{
 			::FillRect(hdc, &rcToDraw1, hBrush);
 			::FillRect(hdc, &rcToDraw2, hBrushTop);
 
-			rcToDraw2.left += 4;
-			rcToDraw2.right += 4;
-			rcToDraw1.left += 4;
-			rcToDraw1.right += 4;
+			rcToDraw2.left  += n;
+			rcToDraw2.right += n;
+			rcToDraw1.left  += n;
+			rcToDraw1.right += n;
 		}
 
-		rcToDraw2.top += 4;
-		rcToDraw2.bottom += 4;
-		rcToDraw1.top += 4;
-		rcToDraw1.bottom += 4;
+		rcToDraw2.top    += n;
+		rcToDraw2.bottom += n;
+		rcToDraw1.top    += n;
+		rcToDraw1.bottom += n;
 	}
 
-	if ((_splitterSize >= 4) && (_dwFlags & SV_RESIZEWTHPERCNT))
+	if ((_splitterSize >= dpiMgr.scaleX(4)) && (_dwFlags & SV_RESIZEWTHPERCNT))
 		paintArrow(hdc, BRrc, isVertical() ? Arrow::right : Arrow::down);
 
 	if (isDarkMode)
@@ -648,8 +652,10 @@ void Splitter::rotate()
 void Splitter::paintArrow(HDC hdc, const RECT &rect, Arrow arrowDir)
 {
 	RECT rc;
-	rc.left = rect.left; rc.top = rect.top;
-	rc.right = rect.right; rc.bottom = rect.bottom;
+	rc.left = rect.left;
+	rc.top = rect.top;
+	rc.right = rect.right;
+	rc.bottom = rect.bottom;
 
 	switch (arrowDir)
 	{
@@ -658,7 +664,6 @@ void Splitter::paintArrow(HDC hdc, const RECT &rect, Arrow arrowDir)
 			int x = rc.right;
 			int y = rc.top;
 
-			//::MoveToEx(hdc, x, y, NULL);
 			for (; (x > rc.left) && (y != rc.bottom) ; --x)
 			{
 				::MoveToEx(hdc, x, y++, NULL);
@@ -672,7 +677,6 @@ void Splitter::paintArrow(HDC hdc, const RECT &rect, Arrow arrowDir)
 			int x = rc.left;
 			int y = rc.top;
 
-			//::MoveToEx(hdc, x, y, NULL);
 			for (; (x < rc.right) && (y != rc.bottom) ; ++x)
 			{
 				::MoveToEx(hdc, x, y++, NULL);
@@ -686,7 +690,6 @@ void Splitter::paintArrow(HDC hdc, const RECT &rect, Arrow arrowDir)
 			int x = rc.left;
 			int y = rc.bottom;
 
-			//::MoveToEx(hdc, x, y, NULL);
 			for (; (y > rc.top) && (x != rc.right) ; --y)
 			{
 				::MoveToEx(hdc, x++, y, NULL);
@@ -700,7 +703,6 @@ void Splitter::paintArrow(HDC hdc, const RECT &rect, Arrow arrowDir)
 			int x = rc.left;
 			int y = rc.top;
 
-			//::MoveToEx(hdc, x, y, NULL);
 			for (; (y < rc.bottom) && (x != rc.right) ; ++y)
 			{
 				::MoveToEx(hdc, x++, y, NULL);
diff --git a/PowerEditor/src/WinControls/SplitterContainer/SplitterContainer.h b/PowerEditor/src/WinControls/SplitterContainer/SplitterContainer.h
index bed25179e..18c4823ef 100644
--- a/PowerEditor/src/WinControls/SplitterContainer/SplitterContainer.h
+++ b/PowerEditor/src/WinControls/SplitterContainer/SplitterContainer.h
@@ -38,7 +38,7 @@ class SplitterContainer : public Window
 public :
 	virtual ~SplitterContainer() = default;
 
-	void create(Window *pWin0, Window *pWin1, int splitterSize = 4,
+	void create(Window *pWin0, Window *pWin1, int splitterSize,
 		SplitterMode mode = SplitterMode::DYNAMIC, int ratio = 50, bool _isVertical = true);
 
 	void destroy();