From 52539544c46db0262a3bf7a67036c80b08c7f4ac Mon Sep 17 00:00:00 2001
From: m-holger <m-holger@kubitscheck.org>
Date: Fri, 25 Aug 2023 12:37:24 +0100
Subject: Modify QPDF::replaceReserved to allow replacing indirect nulls

---
 libqpdf/QPDF.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'libqpdf/QPDF.cc')

diff --git a/libqpdf/QPDF.cc b/libqpdf/QPDF.cc
index 45bd1847..739ad7ce 100644
--- a/libqpdf/QPDF.cc
+++ b/libqpdf/QPDF.cc
@@ -1948,7 +1948,10 @@ void
 QPDF::replaceReserved(QPDFObjectHandle reserved, QPDFObjectHandle replacement)
 {
     QTC::TC("qpdf", "QPDF replaceReserved");
-    reserved.assertReserved();
+    auto tc = reserved.getTypeCode();
+    if (!(tc == ::ot_reserved || tc == ::ot_null)) {
+        throw std::logic_error("replaceReserved called with non-reserverd object");
+    }
     replaceObject(reserved.getObjGen(), replacement);
 }
 
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