1 files changed, 11 insertions, 1 deletions
diff --git a/include/qpdf/QPDFNumberTreeObjectHelper.hh b/include/qpdf/QPDFNumberTreeObjectHelper.hh
index d4e93690..dcef7e8d 100644
--- a/include/qpdf/QPDFNumberTreeObjectHelper.hh
+++ b/include/qpdf/QPDFNumberTreeObjectHelper.hh
@@ -39,6 +39,16 @@ class NNTreeDetails;
 class QPDFNumberTreeObjectHelper: public QPDFObjectHelper
 {
   public:
+    // The qpdf object is required so that this class can issue
+    // warnings, attempt repairs, and add indirect objects.
+    QPDF_DLL
+    QPDFNumberTreeObjectHelper(QPDFObjectHandle, QPDF&,
+                               bool auto_repair = true);
+
+    // ABI: Legacy Constructor will be removed in QPDF 11. A
+    // QPDFNumberTreeObjectHelper constructed in this way can't be
+    // modified or repaired and will silently ignore problems in the
+    // structure.
     QPDF_DLL
     QPDFNumberTreeObjectHelper(QPDFObjectHandle);
     QPDF_DLL
@@ -154,7 +164,7 @@ class QPDFNumberTreeObjectHelper: public QPDFObjectHelper
         ~Members();
 
       private:
-        Members(QPDFObjectHandle& oh);
+        Members(QPDFObjectHandle& oh, QPDF*, bool auto_repair);
         Members(Members const&) = delete;
 
         std::shared_ptr<NNTreeImpl> impl;