From 07f176f6fe8deda65129c8c2ac20a6ef3dedb140 Mon Sep 17 00:00:00 2001
From: Risord <936113+Risord@users.noreply.github.com>
Date: Mon, 20 May 2019 16:42:53 +0300
Subject: [PATCH] Fix InsertRange annotation crash

Adding annotations to page will crash since ImportExternalPage has already cloned them.
---
 src/PdfSharp/Pdf/PdfPages.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PdfSharp/Pdf/PdfPages.cs b/src/PdfSharp/Pdf/PdfPages.cs
index de2ee441..b9ee3d5f 100644
--- a/src/PdfSharp/Pdf/PdfPages.cs
+++ b/src/PdfSharp/Pdf/PdfPages.cs
@@ -360,7 +360,7 @@ public void InsertRange(int index, PdfDocument document, int startIndex, int pag
                     if (annotations.Count > 0)
                     {
                         //Owner._irefTable.Add(annotations);
-                        page.Elements.Add(PdfPage.Keys.Annots, annotations);
+                        page.Elements[PdfPage.Keys.Annots] = annotations;
                     }
                 }