diff --git a/fpdfsdk/fpdf_annot.cpp b/fpdfsdk/fpdf_annot.cpp
index 98b3e4f0a..c1471220b 100644
--- a/fpdfsdk/fpdf_annot.cpp
+++ b/fpdfsdk/fpdf_annot.cpp
@@ -493,6 +493,65 @@ FPDFAnnot_RemoveInkList(FPDF_ANNOTATION annot) {
   return true;
 }

+FPDF_EXPORT int FPDF_CALLCONV
+FPDFAnnot_GetInkStrokeCount(FPDF_ANNOTATION annot)
+{
+  if (FPDFAnnot_GetSubtype(annot) != FPDF_ANNOT_INK)
+    return -1;
+
+  CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot);
+
+  CPDF_Array* inklist = pAnnotDict->GetArrayFor("InkList");
+  if (!inklist)
+    return 0;
+
+  return static_cast<int>(inklist->size());
+}
+
+FPDF_EXPORT int FPDF_CALLCONV
+FPDFAnnot_GetInkStrokePointCount(FPDF_ANNOTATION annot, int index)
+{
+  if (FPDFAnnot_GetSubtype(annot) != FPDF_ANNOT_INK)
+    return -1;
+
+  CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot);
+
+  CPDF_Array* pInkList = pAnnotDict->GetArrayFor("InkList");
+  if (!pInkList)
+    return 0;
+
+  CPDF_Array* pInkPoints = pInkList->GetArrayAt(index);
+  if (!pInkPoints)
+    return 0;
+
+  return static_cast<int>(pInkPoints->size() / 2);
+}
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFAnnot_GetInkStrokePoints(FPDF_ANNOTATION annot, int index,
+                             FS_POINTF* points)
+{
+  if (FPDFAnnot_GetSubtype(annot) != FPDF_ANNOT_INK)
+    return false;
+
+  CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot);
+
+  CPDF_Array* pInkList = pAnnotDict->GetArrayFor("InkList");
+  if (!pInkList)
+    return false;
+  CPDF_Array* pInkPoints = pInkList->GetArrayAt(index);
+  if (!pInkPoints)
+    return false;
+
+  for (int i = 0; i < pInkPoints->size(); i += 2) {
+      int pointIndex = i / 2;
+      points[pointIndex].x = pInkPoints->GetNumberAt(i);
+      points[pointIndex].y = pInkPoints->GetNumberAt(i + 1);
+  }
+
+  return true;
+}
+
 FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
 FPDFAnnot_AppendObject(FPDF_ANNOTATION annot, FPDF_PAGEOBJECT obj) {
   CPDF_AnnotContext* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot);
@@ -806,6 +865,48 @@ FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_GetRect(FPDF_ANNOTATION annot,
   return true;
 }

+FPDF_EXPORT int FPDF_CALLCONV
+FPDFAnnot_GetVerticesCount(FPDF_ANNOTATION annot)
+{
+  if (FPDFAnnot_GetSubtype(annot) != FPDF_ANNOT_POLYGON &&
+      FPDFAnnot_GetSubtype(annot) != FPDF_ANNOT_POLYLINE) {
+    return -1;
+  }
+
+  CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot);
+
+  CPDF_Array* pVertices = pAnnotDict->GetArrayFor("Vertices");
+
+  if (!pVertices)
+    return 0;
+
+  return static_cast<int>(pVertices->size() / 2);
+}
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFAnnot_GetVertices(FPDF_ANNOTATION annot, FS_POINTF* points)
+{
+  if (FPDFAnnot_GetSubtype(annot) != FPDF_ANNOT_POLYGON &&
+      FPDFAnnot_GetSubtype(annot) != FPDF_ANNOT_POLYLINE) {
+    return false;
+  }
+
+  CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot);
+
+  CPDF_Array* pVertices = pAnnotDict->GetArrayFor("Vertices");
+
+  if (!pVertices)
+    return false;
+
+  for (int i = 0; i < pVertices->size(); i += 2) {
+      int pointIndex = i / 2;
+      points[pointIndex].x = pVertices->GetNumberAt(i);
+      points[pointIndex].y = pVertices->GetNumberAt(i + 1);
+  }
+
+  return true;
+}
+
 FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_HasKey(FPDF_ANNOTATION annot,
                                                      FPDF_BYTESTRING key) {
   CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot);
diff --git a/public/fpdf_annot.h b/public/fpdf_annot.h
index 9561d8416..2176450c8 100644
--- a/public/fpdf_annot.h
+++ b/public/fpdf_annot.h
@@ -222,6 +222,16 @@ FPDF_EXPORT int FPDF_CALLCONV FPDFAnnot_AddInkStroke(FPDF_ANNOTATION annot,
 FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
 FPDFAnnot_RemoveInkList(FPDF_ANNOTATION annot);

+FPDF_EXPORT int FPDF_CALLCONV
+FPDFAnnot_GetInkStrokeCount(FPDF_ANNOTATION annot);
+
+FPDF_EXPORT int FPDF_CALLCONV
+FPDFAnnot_GetInkStrokePointCount(FPDF_ANNOTATION annot, int index);
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFAnnot_GetInkStrokePoints(FPDF_ANNOTATION annot, int index,
+                             FS_POINTF* points);
+
 // Experimental API.
 // Add |obj| to |annot|. |obj| must have been created by
 // FPDFPageObj_CreateNew{Path|Rect}() or FPDFPageObj_New{Text|Image}Obj(), and
@@ -394,6 +404,12 @@ FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_SetRect(FPDF_ANNOTATION annot,
 FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_GetRect(FPDF_ANNOTATION annot,
                                                       FS_RECTF* rect);

+FPDF_EXPORT int FPDF_CALLCONV
+FPDFAnnot_GetVerticesCount(FPDF_ANNOTATION annot);
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFAnnot_GetVertices(FPDF_ANNOTATION annot, FS_POINTF* points);
+
 // Experimental API.
 // Check if |annot|'s dictionary has |key| as a key.
 //
--
2.26.2