1 files changed, 11 insertions, 0 deletions
diff --git a/public/fpdf_annot.h b/public/fpdf_annot.h
index f4dc03a2c4..a84c4f982a 100644
--- a/public/fpdf_annot.h
+++ b/public/fpdf_annot.h
@@ -5,6 +5,8 @@
 #ifndef PUBLIC_FPDF_ANNOT_H_
 #define PUBLIC_FPDF_ANNOT_H_
 
+#include <stddef.h>
+
 // NOLINTNEXTLINE(build/include)
 #include "fpdfview.h"
 
@@ -311,6 +313,15 @@ FPDFAnnot_SetAttachmentPoints(FPDF_ANNOTATION annot,
                               const FS_QUADPOINTSF* quad_points);
 
 // Experimental API.
+// Get the number of sets of quadpoints of an annotation.
+//
+//   annot  - handle to an annotation.
+//
+// Returns the number of sets of quadpoints, or 0 on failure.
+FPDF_EXPORT size_t FPDF_CALLCONV
+FPDFAnnot_CountAttachmentPoints(FPDF_ANNOTATION annot);
+
+// Experimental API.
 // Get the attachment points (i.e. quadpoints) of an annotation.
 //
 //   annot       - handle to an annotation.