diff options
Diffstat (limited to 'libqpdf/QPDF_Dictionary.cc')
| -rw-r--r-- | libqpdf/QPDF_Dictionary.cc | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libqpdf/QPDF_Dictionary.cc b/libqpdf/QPDF_Dictionary.cc index 7700b81b..942e6d9e 100644 --- a/libqpdf/QPDF_Dictionary.cc +++ b/libqpdf/QPDF_Dictionary.cc @@ -121,8 +121,10 @@ QPDF_Dictionary::getAsMap() const void QPDF_Dictionary::replaceKey(std::string const& key, QPDFObjectHandle value) { - if (value.isNull()) { - // The PDF spec doesn't distinguish between keys with null values and missing keys. + if (value.isNull() && !value.isIndirect()) { + // The PDF spec doesn't distinguish between keys with null values and missing keys. Allow + // indirect nulls which are equivalent to a dangling reference, which is permitted by the + // spec. removeKey(key); } else { // add or replace value |