diff --git a/core/fpdfdoc/cpdf_annot.cpp b/core/fpdfdoc/cpdf_annot.cpp
index 1976ebe..dd49411 100644
--- a/core/fpdfdoc/cpdf_annot.cpp
+++ b/core/fpdfdoc/cpdf_annot.cpp
@@ -35,16 +35,6 @@
          type == CPDF_Annot::Subtype::UNDERLINE;
 }
 
-bool ShouldGenerateAPForAnnotation(CPDF_Dictionary* pAnnotDict) {
-  // If AP dictionary exists and defines an appearance for normal mode, we use
-  // the appearance defined in the existing AP dictionary.
-  CPDF_Dictionary* pAP = pAnnotDict->GetDictFor(pdfium::annotation::kAP);
-  if (pAP && pAP->GetDictFor("N"))
-    return false;
-
-  return !CPDF_Annot::IsAnnotationHidden(pAnnotDict);
-}
-
 CPDF_Form* AnnotGetMatrix(const CPDF_Page* pPage,
                           CPDF_Annot* pAnnot,
                           CPDF_Annot::AppearanceMode mode,
@@ -126,7 +116,7 @@
 }
 
 void CPDF_Annot::GenerateAPIfNeeded() {
-  if (!ShouldGenerateAPForAnnotation(m_pAnnotDict.Get()))
+  if (!ShouldGenerateAP())
     return;
   if (!CPVT_GenerateAP::GenerateAnnotAP(m_nSubtype, m_pDocument.Get(),
                                         m_pAnnotDict.Get())) {
@@ -137,8 +127,19 @@
   m_bHasGeneratedAP = true;
 }
 
+bool CPDF_Annot::ShouldGenerateAP() const {
+  // If AP dictionary exists and defines an appearance for normal mode, we use
+  // the appearance defined in the existing AP dictionary.
+  const CPDF_Dictionary* pAP =
+      m_pAnnotDict->GetDictFor(pdfium::annotation::kAP);
+  if (pAP && pAP->GetDictFor("N"))
+    return false;
+
+  return !IsHidden();
+}
+
 bool CPDF_Annot::ShouldDrawAnnotation() {
-  if (IsAnnotationHidden(m_pAnnotDict.Get()))
+  if (IsHidden())
     return false;
 
   if (m_nSubtype == CPDF_Annot::Subtype::POPUP && !m_bOpenState)
@@ -180,6 +181,10 @@
   return m_pAnnotDict->GetIntegerFor(pdfium::annotation::kF);
 }
 
+bool CPDF_Annot::IsHidden() const {
+  return !!(GetFlags() & ANNOTFLAG_HIDDEN);
+}
+
 CPDF_Stream* GetAnnotAP(CPDF_Dictionary* pAnnotDict,
                         CPDF_Annot::AppearanceMode eMode) {
   return GetAnnotAPInternal(pAnnotDict, eMode, true);
@@ -258,12 +263,6 @@
 }
 
 // static
-bool CPDF_Annot::IsAnnotationHidden(CPDF_Dictionary* pAnnotDict) {
-  return !!(pAnnotDict->GetIntegerFor(pdfium::annotation::kF) &
-            ANNOTFLAG_HIDDEN);
-}
-
-// static
 CPDF_Annot::Subtype CPDF_Annot::StringToAnnotSubtype(
     const ByteString& sSubtype) {
   if (sSubtype == "Text")
diff --git a/core/fpdfdoc/cpdf_annot.h b/core/fpdfdoc/cpdf_annot.h
index 00de807..43d8f58 100644
--- a/core/fpdfdoc/cpdf_annot.h
+++ b/core/fpdfdoc/cpdf_annot.h
@@ -64,7 +64,6 @@
     XFAWIDGET
   };
 
-  static bool IsAnnotationHidden(CPDF_Dictionary* pAnnotDict);
   static CPDF_Annot::Subtype StringToAnnotSubtype(const ByteString& sSubtype);
   static ByteString AnnotSubtypeToString(CPDF_Annot::Subtype nSubtype);
   static CFX_FloatRect RectFromQuadPointsArray(const CPDF_Array* pArray,
@@ -86,6 +85,8 @@
   CPDF_Document* GetDocument() const { return m_pDocument.Get(); }
   CPDF_Dictionary* GetAnnotDict() const { return m_pAnnotDict.Get(); }
 
+  bool IsHidden() const;
+
   bool DrawAppearance(CPDF_Page* pPage,
                       CFX_RenderDevice* pDevice,
                       const CFX_Matrix& mtUser2Device,
@@ -108,6 +109,7 @@
  private:
   void Init();
   void GenerateAPIfNeeded();
+  bool ShouldGenerateAP() const;
   bool ShouldDrawAnnotation();
 
   CFX_FloatRect RectForDrawing() const;
diff --git a/fxjs/cjs_annot.cpp b/fxjs/cjs_annot.cpp
index e23e4eb..9dc2b8c 100644
--- a/fxjs/cjs_annot.cpp
+++ b/fxjs/cjs_annot.cpp
@@ -47,8 +47,7 @@
     return CJS_Result::Failure(JSMessage::kBadObjectError);
 
   CPDF_Annot* pPDFAnnot = m_pAnnot->AsBAAnnot()->GetPDFAnnot();
-  return CJS_Result::Success(pRuntime->NewBoolean(
-      CPDF_Annot::IsAnnotationHidden(pPDFAnnot->GetAnnotDict())));
+  return CJS_Result::Success(pRuntime->NewBoolean(pPDFAnnot->IsHidden()));
 }
 
 CJS_Result CJS_Annot::set_hidden(CJS_Runtime* pRuntime,