diff --git a/ClosedXML/Excel/XLWorkbook_Save.cs b/ClosedXML/Excel/XLWorkbook_Save.cs
index 79d911d..3eb582d 100644
--- a/ClosedXML/Excel/XLWorkbook_Save.cs
+++ b/ClosedXML/Excel/XLWorkbook_Save.cs
@@ -2624,6 +2624,7 @@
 
                 case Drawings.XLPicturePlacement.MoveAndSize:
                     var moveAndSizeFromMarker = pic.Markers[Drawings.XLMarkerPosition.TopLeft];
+                    if (moveAndSizeFromMarker == null) moveAndSizeFromMarker = new Drawings.XLMarker(picture.Worksheet.Cell("A1").Address);
                     fMark = new Xdr.FromMarker
                     {
                         ColumnId = new Xdr.ColumnId((moveAndSizeFromMarker.Address.ColumnNumber - 1).ToString()),
@@ -2633,6 +2634,7 @@
                     };
 
                     var moveAndSizeToMarker = pic.Markers[Drawings.XLMarkerPosition.BottomRight];
+                    if (moveAndSizeToMarker == null) moveAndSizeToMarker = new Drawings.XLMarker(picture.Worksheet.Cell("A1").Address, new System.Drawing.Point(picture.Width, picture.Height));
                     tMark = new Xdr.ToMarker
                     {
                         ColumnId = new Xdr.ColumnId((moveAndSizeToMarker.Address.ColumnNumber - 1).ToString()),
@@ -2669,6 +2671,7 @@
 
                 case Drawings.XLPicturePlacement.Move:
                     var moveFromMarker = pic.Markers[Drawings.XLMarkerPosition.TopLeft];
+                    if (moveFromMarker == null) moveFromMarker = new Drawings.XLMarker(picture.Worksheet.Cell("A1").Address);
                     fMark = new Xdr.FromMarker
                     {
                         ColumnId = new Xdr.ColumnId((moveFromMarker.Address.ColumnNumber - 1).ToString()),