diff options
| -rw-r--r-- | libqpdf/QPDFWriter.cc | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/libqpdf/QPDFWriter.cc b/libqpdf/QPDFWriter.cc index 5f97117d..cdab9db1 100644 --- a/libqpdf/QPDFWriter.cc +++ b/libqpdf/QPDFWriter.cc @@ -1502,12 +1502,14 @@ QPDFWriter::unparseObject(QPDFObjectHandle object, int level, else if (object.isDictionary()) { // Make a shallow copy of this object so we can modify it - // safely without affecting the original. This code makes + // safely without affecting the original. This code makes // assumptions about things that are made true in // prepareFileForWrite, such as that certain things are direct // objects so that replacing them doesn't leave unreferenced - // objects in the output. - object = object.shallowCopy(); + // objects in the output. We can use unsafeShallowCopy here + // because we are all we are doing is removing or replacing + // top-level keys. + object = object.unsafeShallowCopy(); // Handle special cases for specific dictionaries. @@ -2413,7 +2415,7 @@ QPDFWriter::getTrimmedTrailer() // Remove keys from the trailer that necessarily have to be // replaced when writing the file. - QPDFObjectHandle trailer = this->m->pdf.getTrailer().shallowCopy(); + QPDFObjectHandle trailer = this->m->pdf.getTrailer().unsafeShallowCopy(); // Remove encryption keys trailer.removeKey("/ID"); |