1 files changed, 13 insertions, 0 deletions
diff --git a/core/fpdfapi/parser/cpdf_document.cpp b/core/fpdfapi/parser/cpdf_document.cpp
index 7968d1b019..2e4baabe91 100644
--- a/core/fpdfapi/parser/cpdf_document.cpp
+++ b/core/fpdfapi/parser/cpdf_document.cpp
@@ -602,6 +602,19 @@ bool CPDF_Document::InsertNewPage(int iPage, CPDF_Dictionary* pPageDict) {
   return true;
 }
 
+RetainPtr<CPDF_Page> CPDF_Document::GetOrCreatePDFPage(
+    CPDF_Dictionary* pPageDict) {
+  std::pair<uint32_t, uint32_t> key = {pPageDict->GetObjNum(),
+                                       pPageDict->GetGenNum()};
+  if (m_PageMap[key])
+    return RetainPtr<CPDF_Page>(m_PageMap[key].Get());
+
+  auto pPage = pdfium::MakeRetain<CPDF_Page>(this, pPageDict, true);
+  pPage->ParseContent();
+  m_PageMap[key].Reset(pPage.Get());
+  return pPage;
+}
+
 void CPDF_Document::DeletePage(int iPage) {
   CPDF_Dictionary* pPages = GetPagesDict();
   if (!pPages)