1 files changed, 22 insertions, 0 deletions
diff --git a/core/fpdfapi/parser/cpdf_stream.cpp b/core/fpdfapi/parser/cpdf_stream.cpp
index e4f279a32d..7e2529e1d7 100644
--- a/core/fpdfapi/parser/cpdf_stream.cpp
+++ b/core/fpdfapi/parser/cpdf_stream.cpp
@@ -131,3 +131,25 @@ CFX_WideString CPDF_Stream::GetUnicodeText() const {
   pAcc->LoadAllData(false);
   return PDF_DecodeText(pAcc->GetData(), pAcc->GetSize());
 }
+
+bool CPDF_Stream::WriteTo(CFX_FileBufferArchive* archive,
+                          FX_FILESIZE* offset) const {
+  if (!GetDict()->WriteTo(archive, offset))
+    return false;
+  if (archive->AppendString("stream\r\n") < 0)
+    return false;
+  *offset += 8;
+
+  auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(this);
+  pAcc->LoadAllData(true);
+  if (archive->AppendBlock(pAcc->GetData(), pAcc->GetSize()) < 0)
+    return false;
+  *offset += pAcc->GetSize();
+
+  int32_t len = archive->AppendString("\r\nendstream");
+  if (len < 0)
+    return false;
+
+  *offset += len;
+  return true;
+}