From 6e0caee317976f5c45c4049f8ace8d7701883284 Mon Sep 17 00:00:00 2001
From: Inusual <wesmoret98@gmail.com>
Date: Mon, 24 Feb 2020 21:07:23 -0400
Subject: [PATCH] Add StreamToken as exception to CopyTokenq

Add summary to better explain CopyToken purpose
---
 src/UglyToad.PdfPig/Writer/PdfMerger.cs | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/UglyToad.PdfPig/Writer/PdfMerger.cs b/src/UglyToad.PdfPig/Writer/PdfMerger.cs
index 186fc658..e059c7a2 100644
--- a/src/UglyToad.PdfPig/Writer/PdfMerger.cs
+++ b/src/UglyToad.PdfPig/Writer/PdfMerger.cs
@@ -264,6 +264,13 @@
                 return Context.WriteObject(Memory, new DictionaryToken(pageDictionary));
             }
 
+            /// <summary>
+            /// The purpose of this method is to resolve indirect reference. That mean copy the reference's content to the new document's stream
+            /// and replace the indirect reference with the correct/new one
+            /// </summary>
+            /// <param name="tokenToCopy">Token to inspect for reference</param>
+            /// <param name="tokenScanner">scanner get the content from the original document</param>
+            /// <returns>A copy of the token with all his content copied to the new document's stream</returns>
             private IToken CopyToken(IToken tokenToCopy, IPdfTokenScanner tokenScanner)
             {
                 if (tokenToCopy is DictionaryToken dictionaryToken)
@@ -301,11 +308,14 @@
                 }
                 else if (tokenToCopy is StreamToken streamToken)
                 {
-                    return streamToken;
+                    //Note: Unnecessary
+                    var properties = CopyToken(streamToken.StreamDictionary, tokenScanner) as DictionaryToken;
+                    Debug.Assert(properties != null);
+                    return new StreamToken(properties, new List<byte>(streamToken.Data));
                 }
                 else // Non Complex Token - BooleanToken, NumericToken, NameToken, Etc...
                 {
-                    // TODO: Should we do a deep copy of the token?
+                    // TODO: Should we do a deep copy of this tokens?
                     return tokenToCopy;
                 }
             }