diff --git a/include/qpdf/QPDF.hh b/include/qpdf/QPDF.hh
index a4a06c8..048bad4 100644
--- a/include/qpdf/QPDF.hh
+++ b/include/qpdf/QPDF.hh
@@ -344,6 +344,9 @@ class QPDF
     QPDF_DLL
     std::vector<QPDFObjectHandle> const& getAllPages();
 
+    QPDF_DLL
+    void clearPagesCache();
+
     // Resolver class is restricted to QPDFObjectHandle so that only
     // it can resolve indirect references.
     class Resolver
diff --git a/libqpdf/QPDF.cc b/libqpdf/QPDF.cc
index 1c47d89..64c454a 100644
--- a/libqpdf/QPDF.cc
+++ b/libqpdf/QPDF.cc
@@ -2202,3 +2202,9 @@ QPDF::getAllPagesInternal(QPDFObjectHandle cur_pages,
 		      ": invalid Type in page tree");
     }
 }
+
+void
+QPDF::clearPagesCache()
+{
+    this->all_pages.clear();
+}