diff --git a/libs/image/kis_image.h b/libs/image/kis_image.h
--- a/libs/image/kis_image.h
+++ b/libs/image/kis_image.h
@@ -334,11 +334,11 @@
     QPointF documentToPixel(const QPointF &documentCoord) const;
 
     /**
-     * Convert a document coordinate to an integer pixel coordinate.
+     * Convert a document coordinate to an integer pixel coordinate rounded down.
      *
      * @param documentCoord PostScript Pt coordinate to convert.
      */
-    QPoint documentToIntPixel(const QPointF &documentCoord) const;
+    QPoint documentToImagePixelFloored(const QPointF &documentCoord) const;
 
     /**
      * Convert a document rectangle to a pixel rectangle.
diff --git a/libs/image/kis_image.cc b/libs/image/kis_image.cc
--- a/libs/image/kis_image.cc
+++ b/libs/image/kis_image.cc
@@ -938,10 +938,10 @@
     return QPointF(documentCoord.x() * xRes(), documentCoord.y() * yRes());
 }
 
-QPoint KisImage::documentToIntPixel(const QPointF &documentCoord) const
+QPoint KisImage::documentToImagePixelFloored(const QPointF &documentCoord) const
 {
     QPointF pixelCoord = documentToPixel(documentCoord);
-    return QPoint((int)pixelCoord.x(), (int)pixelCoord.y());
+    return QPoint(qFloor(pixelCoord.x()), qFloor(pixelCoord.y()));
 }
 
 QRectF KisImage::documentToPixel(const QRectF &documentRect) const
diff --git a/libs/ui/kis_statusbar.cc b/libs/ui/kis_statusbar.cc
--- a/libs/ui/kis_statusbar.cc
+++ b/libs/ui/kis_statusbar.cc
@@ -204,7 +204,7 @@
 {
     if (!m_imageView) return;
 
-    QPoint pixelPos = m_imageView->image()->documentToIntPixel(pos);
+    QPoint pixelPos = m_imageView->image()->documentToImagePixelFloored(pos);
 
     pixelPos.setX(qBound(0, pixelPos.x(), m_view->image()->width() - 1));
     pixelPos.setY(qBound(0, pixelPos.y(), m_view->image()->height() - 1));
diff --git a/libs/ui/tool/kis_tool.h b/libs/ui/tool/kis_tool.h
--- a/libs/ui/tool/kis_tool.h
+++ b/libs/ui/tool/kis_tool.h
@@ -211,10 +211,10 @@
     QPointF convertDocumentToWidget(const QPointF& pt);
 
     /// Convert from native (postscript points) to integer image pixel
-    /// coordinates. This truncates the floating point components and
+    /// coordinates. This rounds down (not truncate) the pixel coordinates and
     /// should be used in preference to QPointF::toPoint(), which rounds,
     /// to ensure the cursor acts on the pixel it is visually over.
-    QPoint convertToIntPixelCoord(KoPointerEvent *e);
+    QPoint convertToImagePixelCoordFloored(KoPointerEvent *e);
 
     QRectF convertToPt(const QRectF &rect);
 
diff --git a/libs/ui/tool/kis_tool.cc b/libs/ui/tool/kis_tool.cc
--- a/libs/ui/tool/kis_tool.cc
+++ b/libs/ui/tool/kis_tool.cc
@@ -273,12 +273,12 @@
     return image()->documentToPixel(pos);
 }
 
-QPoint KisTool::convertToIntPixelCoord(KoPointerEvent *e)
+QPoint KisTool::convertToImagePixelCoordFloored(KoPointerEvent *e)
 {
     if (!image())
         return e->point.toPoint();
 
-    return image()->documentToIntPixel(e->point);
+    return image()->documentToImagePixelFloored(e->point);
 }
 
 QPointF KisTool::viewToPixel(const QPointF &viewCoord) const
diff --git a/libs/ui/tool/kis_tool_paint.cc b/libs/ui/tool/kis_tool_paint.cc
--- a/libs/ui/tool/kis_tool_paint.cc
+++ b/libs/ui/tool/kis_tool_paint.cc
@@ -369,7 +369,7 @@
 
     KIS_ASSERT_RECOVER_RETURN(isPickingAction(pickingJob.action));
 
-    const QPoint imagePoint = image()->documentToIntPixel(pickingJob.documentPixel);
+    const QPoint imagePoint = image()->documentToImagePixelFloored(pickingJob.documentPixel);
     const bool fromCurrentNode = pickingJob.action == PickFgNode || pickingJob.action == PickBgNode;
     m_pickingResource = colorPreviewResourceId(pickingJob.action);
 
diff --git a/plugins/tools/basictools/kis_tool_colorpicker.cc b/plugins/tools/basictools/kis_tool_colorpicker.cc
--- a/plugins/tools/basictools/kis_tool_colorpicker.cc
+++ b/plugins/tools/basictools/kis_tool_colorpicker.cc
@@ -203,7 +203,7 @@
         }
     }
 
-    QPoint pos = convertToIntPixelCoord(event);
+    QPoint pos = convertToImagePixelCoordFloored(event);
     // the color picking has to start in the visible part of the layer
     if (!currentImage()->bounds().contains(pos) &&
         !currentImage()->wrapAroundModePermitted()) {
@@ -220,7 +220,7 @@
 {
     CHECK_MODE_SANITY_OR_RETURN(KisTool::PAINT_MODE);
 
-    QPoint pos = convertToIntPixelCoord(event);
+    QPoint pos = convertToImagePixelCoordFloored(event);
     pickColor(pos);
     displayPickedColor();
 }
diff --git a/plugins/tools/basictools/kis_tool_fill.cc b/plugins/tools/basictools/kis_tool_fill.cc
--- a/plugins/tools/basictools/kis_tool_fill.cc
+++ b/plugins/tools/basictools/kis_tool_fill.cc
@@ -110,7 +110,7 @@
 
     setMode(KisTool::PAINT_MODE);
 
-    m_startPos = convertToIntPixelCoord(event);
+    m_startPos = convertToImagePixelCoordFloored(event);
 }
 
 void KisToolFill::endPrimaryAction(KoPointerEvent *event)
diff --git a/plugins/tools/selectiontools/kis_tool_select_contiguous.cc b/plugins/tools/selectiontools/kis_tool_select_contiguous.cc
--- a/plugins/tools/selectiontools/kis_tool_select_contiguous.cc
+++ b/plugins/tools/selectiontools/kis_tool_select_contiguous.cc
@@ -93,7 +93,7 @@
     QApplication::setOverrideCursor(KisCursor::waitCursor());
 
 
-    QPoint pos = convertToIntPixelCoord(event);
+    QPoint pos = convertToImagePixelCoordFloored(event);
     QRect rc = currentImage()->bounds();
     KisFillPainter fillpainter(dev);
     fillpainter.setHeight(rc.height());