diff --git a/krita/pykrita/custompreview/custompreview.py b/krita/pykrita/custompreview/custompreview.py
index 8b970f5..39c24dd 100755
--- a/krita/pykrita/custompreview/custompreview.py
+++ b/krita/pykrita/custompreview/custompreview.py
@@ -2,19 +2,21 @@ import math
 import random
 import re, time, datetime
 import numpy
+import io
 import cv2
 from PIL import Image
 from pathlib import Path
 import gmic
 import json
 from skimage.color import rgb2lab, rgba2rgb
+import qimage2ndarray
 
-from PyQt5.QtCore import Qt, pyqtSignal, QEvent
+from PyQt5.QtCore import Qt, pyqtSignal, QEvent, QBuffer
 from PyQt5.QtGui import QImage, QPainter, QPixmap, QIcon, QInputEvent, QTabletEvent, QMouseEvent, \
-  QHelpEvent, QPaintEvent, QTransform
+  QHelpEvent, QPaintEvent, QTransform, QPixelFormat
 from PyQt5.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QFileDialog, QLabel, QSizePolicy, \
   QScrollArea, QAction, QToolButton, QMdiArea, QAbstractScrollArea, QCheckBox, QComboBox, QLineEdit
-from PyQt5.QtCore import QTimer
+from PyQt5.QtCore import QTimer, QByteArray
 from krita import Krita, DockWidget, DockWidgetFactory, DockWidgetFactoryBase, Extension
 from .util import dump_tablet_event, dump_mouse_event, get_qview, rgb2hsv
 
@@ -405,7 +407,7 @@ class CustomPreview(DockWidget):
     if mirror:
       previewImage = doc.projection(int(((doc.width()) - o_w - c_x)), c_y, int(kis_canvas_controller.width() * factor), o_h)
     else:
-      previewImage = doc.projection(c_x, c_y, o_w, o_h)
+      previewImage = doc.projection(c_x, c_y, o_w, o_h)  # type: QBuffer
       # previewImage = doc.projection(c_x, c_y if canvas.rotation() != 180 else int(((doc.height()) - o_h - c_y)), o_w, o_h)
     # pprint(("flipped:", self.flipped, "locked:", self.locked, "canvas.mirror:", mirror))
     # pprint(("o_w:", o_w, "o_h:", o_h, "c_x", c_x, "c_y", c_y))
@@ -415,7 +417,7 @@ class CustomPreview(DockWidget):
     width = dim.width() - self.scrollArea.contentsMargins().top() * 2
     height = dim.height() - self.scrollArea.contentsMargins().top() * 2
     previewImage = previewImage.scaled(width, height, Qt.KeepAspectRatio, Qt.SmoothTransformation)
-    previewImage = previewImage.mirrored(canvas.mirror(), 0) #type: QImage
+    previewImage = previewImage.mirrored(canvas.mirror(), 0)  # type: QImage
     if self.rot:
       rot = canvas.rotation()
       transform = QTransform()
@@ -425,8 +427,10 @@ class CustomPreview(DockWidget):
     choice = self.dropdown.currentText()
     data = self.dropdown.currentData()
     if choice != "Normal":
-
-      im = Image.fromqimage(previewImage)
+      buffer = QBuffer()
+      buffer.open(QBuffer.ReadWrite)
+      previewImage.save(buffer, "PNG")
+      im = Image.open(io.BytesIO(buffer.data()))
       num_im = numpy.array(im)
 
       if choice == "NTSC":
@@ -490,9 +494,9 @@ class CustomPreview(DockWidget):
           ref = g.to_numpy_helper(astype=numpy.uint8, interleave=True, squeeze_shape=True)
           ref = numpy.swapaxes(ref, 0, 1)
 
-      img = Image.fromarray(ref)
-      qimg = img.toqimage()
-      qimg.scaled(width, height, Qt.KeepAspectRatio, Qt.SmoothTransformation)
+      qimg = qimage2ndarray.array2qimage(ref)
+      qimg.scaled(width, height)
+
       previewImage = qimg
       resultImage = qimg.convertToFormat(QImage.Format_ARGB32_Premultiplied)
       resultImage.fill(0)
diff --git a/requirements.txt b/requirements.txt
index 0361840..d48cbc1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ gmic==2.9.4-a1
 scikit-image==0.25.2
 numpy==2.2.3
 pillow==11.1.0
+qimage2ndarray==1.10.0