diff --git a/core/fpdfdoc/cpdf_dest.cpp b/core/fpdfdoc/cpdf_dest.cpp
index 308336e..f7aa98f 100644
--- a/core/fpdfdoc/cpdf_dest.cpp
+++ b/core/fpdfdoc/cpdf_dest.cpp
@@ -55,20 +55,6 @@
   return pDoc->GetPageIndex(pPage->GetObjNum());
 }
 
-uint32_t CPDF_Dest::GetPageObjNum() const {
-  if (!m_pArray)
-    return 0;
-
-  const CPDF_Object* pPage = m_pArray->GetDirectObjectAt(0);
-  if (!pPage)
-    return 0;
-  if (pPage->IsNumber())
-    return pPage->GetInteger();
-  if (pPage->IsDictionary())
-    return pPage->GetObjNum();
-  return 0;
-}
-
 int CPDF_Dest::GetZoomMode() const {
   if (!m_pArray)
     return 0;
diff --git a/core/fpdfdoc/cpdf_dest.h b/core/fpdfdoc/cpdf_dest.h
index ff8458d..e6e673e 100644
--- a/core/fpdfdoc/cpdf_dest.h
+++ b/core/fpdfdoc/cpdf_dest.h
@@ -23,9 +23,7 @@
 
   const CPDF_Array* GetArray() const { return m_pArray.Get(); }
   ByteString GetRemoteName() const;
-
   int GetDestPageIndex(CPDF_Document* pDoc) const;
-  uint32_t GetPageObjNum() const;
 
   // Returns the zoom mode, as one of the PDFDEST_VIEW_* values in fpdf_doc.h.
   int GetZoomMode() const;
diff --git a/core/fpdfdoc/cpdf_formcontrol.cpp b/core/fpdfdoc/cpdf_formcontrol.cpp
index d644ba9..64c3dca 100644
--- a/core/fpdfdoc/cpdf_formcontrol.cpp
+++ b/core/fpdfdoc/cpdf_formcontrol.cpp
@@ -53,48 +53,6 @@
   return ByteString();
 }
 
-void CPDF_FormControl::SetOnStateName(const ByteString& csOn) {
-  ASSERT(GetType() == CPDF_FormField::CheckBox ||
-         GetType() == CPDF_FormField::RadioButton);
-  ByteString csValue = csOn;
-  if (csValue.IsEmpty())
-    csValue = "Yes";
-  else if (csValue == "Off")
-    csValue = "Yes";
-
-  ByteString csAS = m_pWidgetDict->GetStringFor("AS", "Off");
-  if (csAS != "Off")
-    m_pWidgetDict->SetNewFor<CPDF_Name>("AS", csValue);
-
-  CPDF_Dictionary* pAP = m_pWidgetDict->GetDictFor("AP");
-  if (!pAP)
-    return;
-
-  for (const auto& it : *pAP) {
-    CPDF_Object* pObj1 = it.second.get();
-    if (!pObj1)
-      continue;
-
-    CPDF_Object* pObjDirect1 = pObj1->GetDirect();
-    CPDF_Dictionary* pSubDict = pObjDirect1->AsDictionary();
-    if (!pSubDict)
-      continue;
-
-    auto subdict_it = pSubDict->begin();
-    while (subdict_it != pSubDict->end()) {
-      const ByteString& csKey2 = subdict_it->first;
-      CPDF_Object* pObj2 = subdict_it->second.get();
-      ++subdict_it;
-      if (!pObj2)
-        continue;
-      if (csKey2 != "Off") {
-        pSubDict->ReplaceKey(csKey2, csValue);
-        break;
-      }
-    }
-  }
-}
-
 ByteString CPDF_FormControl::GetCheckedAPState() {
   ASSERT(GetType() == CPDF_FormField::CheckBox ||
          GetType() == CPDF_FormField::RadioButton);
diff --git a/core/fpdfdoc/cpdf_formcontrol.h b/core/fpdfdoc/cpdf_formcontrol.h
index d4bcd7b..e3a84e3 100644
--- a/core/fpdfdoc/cpdf_formcontrol.h
+++ b/core/fpdfdoc/cpdf_formcontrol.h
@@ -109,7 +109,6 @@
   void CheckControl(bool bChecked);
 
  private:
-  void SetOnStateName(const ByteString& csOn);
   FX_ARGB GetColor(int& iColorType, const ByteString& csEntry);
   float GetOriginalColor(int index, const ByteString& csEntry);
   void GetOriginalColor(int& iColorType,
diff --git a/core/fpdfdoc/cpdf_formfield.cpp b/core/fpdfdoc/cpdf_formfield.cpp
index e99c745..c3bddd1 100644
--- a/core/fpdfdoc/cpdf_formfield.cpp
+++ b/core/fpdfdoc/cpdf_formfield.cpp
@@ -837,21 +837,6 @@
   return true;
 }
 
-bool CPDF_FormField::ClearSelectedOptions(NotificationOption notify) {
-  if (notify == NotificationOption::kNotify && m_pForm->GetFormNotify()) {
-    WideString csValue;
-    int iIndex = GetSelectedIndex(0);
-    if (iIndex >= 0)
-      csValue = GetOptionLabel(iIndex);
-    if (!NotifyListOrComboBoxBeforeChange(csValue))
-      return false;
-  }
-  m_pDict->RemoveFor("I");
-  if (notify == NotificationOption::kNotify)
-    NotifyListOrComboBoxAfterChange();
-  return true;
-}
-
 void CPDF_FormField::LoadDA() {
   CPDF_Dictionary* pFormDict = m_pForm->GetFormDict();
   if (!pFormDict)
diff --git a/core/fpdfdoc/cpdf_formfield.h b/core/fpdfdoc/cpdf_formfield.h
index 7dc95e5..0a02596 100644
--- a/core/fpdfdoc/cpdf_formfield.h
+++ b/core/fpdfdoc/cpdf_formfield.h
@@ -165,7 +165,6 @@
   int GetSelectedOptionIndex(int index) const;
   bool IsOptionSelected(int iOptIndex) const;
   bool SelectOption(int iOptIndex, bool bSelected, NotificationOption notify);
-  bool ClearSelectedOptions(NotificationOption notify);
 
   float GetFontSize() const { return m_FontSize; }
   CPDF_Font* GetFont() const { return m_pFont.Get(); }
diff --git a/core/fpdfdoc/cpdf_pagelabel.cpp b/core/fpdfdoc/cpdf_pagelabel.cpp
index d6f9220..b622073 100644
--- a/core/fpdfdoc/cpdf_pagelabel.cpp
+++ b/core/fpdfdoc/cpdf_pagelabel.cpp
@@ -120,28 +120,3 @@
   label = WideString::Format(L"%d", nPage + 1);
   return {label};
 }
-
-int32_t CPDF_PageLabel::GetPageByLabel(const ByteStringView& bsLabel) const {
-  if (!m_pDocument)
-    return -1;
-
-  const CPDF_Dictionary* pPDFRoot = m_pDocument->GetRoot();
-  if (!pPDFRoot)
-    return -1;
-
-  int nPages = m_pDocument->GetPageCount();
-  for (int i = 0; i < nPages; i++) {
-    Optional<WideString> str = GetLabel(i);
-    if (!str.has_value())
-      continue;
-    if (PDF_EncodeText(str.value()).Compare(bsLabel))
-      return i;
-  }
-
-  int nPage = FXSYS_atoi(ByteString(bsLabel).c_str());  // NUL terminate.
-  return nPage > 0 && nPage <= nPages ? nPage : -1;
-}
-
-int32_t CPDF_PageLabel::GetPageByLabel(const WideStringView& wsLabel) const {
-  return GetPageByLabel(PDF_EncodeText(WideString(wsLabel)).AsStringView());
-}
diff --git a/core/fpdfdoc/cpdf_pagelabel.h b/core/fpdfdoc/cpdf_pagelabel.h
index 4570e97..473485d 100644
--- a/core/fpdfdoc/cpdf_pagelabel.h
+++ b/core/fpdfdoc/cpdf_pagelabel.h
@@ -18,8 +18,6 @@
   ~CPDF_PageLabel();
 
   Optional<WideString> GetLabel(int nPage) const;
-  int32_t GetPageByLabel(const ByteStringView& bsLabel) const;
-  int32_t GetPageByLabel(const WideStringView& wsLabel) const;
 
  private:
   UnownedPtr<CPDF_Document> const m_pDocument;
diff --git a/core/fpdfdoc/cpdf_variabletext.cpp b/core/fpdfdoc/cpdf_variabletext.cpp
index ddc3bb4..994a7a1 100644
--- a/core/fpdfdoc/cpdf_variabletext.cpp
+++ b/core/fpdfdoc/cpdf_variabletext.cpp
@@ -572,45 +572,6 @@
   return m_SectionArray[newplace.nSecIndex]->AddWord(newplace, wordinfo);
 }
 
-bool CPDF_VariableText::GetWordInfo(const CPVT_WordPlace& place,
-                                    CPVT_WordInfo& wordinfo) {
-  if (!pdfium::IndexInBounds(m_SectionArray, place.nSecIndex))
-    return false;
-
-  CSection* pSection = m_SectionArray[place.nSecIndex].get();
-  if (!pdfium::IndexInBounds(pSection->m_WordArray, place.nWordIndex))
-    return false;
-
-  wordinfo = *pSection->m_WordArray[place.nWordIndex];
-  return true;
-}
-
-bool CPDF_VariableText::SetWordInfo(const CPVT_WordPlace& place,
-                                    const CPVT_WordInfo& wordinfo) {
-  if (!pdfium::IndexInBounds(m_SectionArray, place.nSecIndex))
-    return false;
-
-  CSection* pSection = m_SectionArray[place.nSecIndex].get();
-  if (!pdfium::IndexInBounds(pSection->m_WordArray, place.nWordIndex))
-    return false;
-
-  *pSection->m_WordArray[place.nWordIndex] = wordinfo;
-  return true;
-}
-
-bool CPDF_VariableText::GetLineInfo(const CPVT_WordPlace& place,
-                                    CPVT_LineInfo& lineinfo) {
-  if (!pdfium::IndexInBounds(m_SectionArray, place.nSecIndex))
-    return false;
-
-  CSection* pSection = m_SectionArray[place.nSecIndex].get();
-  if (!pdfium::IndexInBounds(pSection->m_LineArray, place.nLineIndex))
-    return false;
-
-  lineinfo = pSection->m_LineArray[place.nLineIndex]->m_LineInfo;
-  return true;
-}
-
 void CPDF_VariableText::SetPlateRect(const CFX_FloatRect& rect) {
   m_rcPlate = rect;
 }
diff --git a/core/fpdfdoc/cpdf_variabletext.h b/core/fpdfdoc/cpdf_variabletext.h
index c97d303..46d92e5 100644
--- a/core/fpdfdoc/cpdf_variabletext.h
+++ b/core/fpdfdoc/cpdf_variabletext.h
@@ -176,9 +176,6 @@
                          const CPVT_LineInfo& lineinfo);
   CPVT_WordPlace AddWord(const CPVT_WordPlace& place,
                          const CPVT_WordInfo& wordinfo);
-  bool GetWordInfo(const CPVT_WordPlace& place, CPVT_WordInfo& wordinfo);
-  bool SetWordInfo(const CPVT_WordPlace& place, const CPVT_WordInfo& wordinfo);
-  bool GetLineInfo(const CPVT_WordPlace& place, CPVT_LineInfo& lineinfo);
   float GetWordFontSize();
   int32_t GetWordFontIndex(const CPVT_WordInfo& WordInfo);
 
diff --git a/core/fpdfdoc/csection.cpp b/core/fpdfdoc/csection.cpp
index 45cbf6b..4484e4c 100644
--- a/core/fpdfdoc/csection.cpp
+++ b/core/fpdfdoc/csection.cpp
@@ -18,11 +18,6 @@
 
 CSection::~CSection() {}
 
-void CSection::ResetAll() {
-  m_WordArray.clear();
-  m_LineArray.clear();
-}
-
 void CSection::ResetLinePlace() {
   int32_t i = 0;
   for (auto& pLine : m_LineArray) {
diff --git a/core/fpdfdoc/csection.h b/core/fpdfdoc/csection.h
index a8ade86..7352c71 100644
--- a/core/fpdfdoc/csection.h
+++ b/core/fpdfdoc/csection.h
@@ -27,7 +27,6 @@
   explicit CSection(CPDF_VariableText* pVT);
   ~CSection();
 
-  void ResetAll();
   void ResetLinePlace();
   CPVT_WordPlace AddWord(const CPVT_WordPlace& place,
                          const CPVT_WordInfo& wordinfo);