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author | Jay Berkenbilt <ejb@ql.org> | 2020-01-26 22:43:55 +0100 |
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committer | Jay Berkenbilt <ejb@ql.org> | 2020-01-26 22:50:57 +0100 |
commit | 57c01ef81ff11b208188bbdedc98b6ce20c786b3 (patch) | |
tree | 164cd1ba4e8e5f911f7ef860068d68b39831231f /libqpdf | |
parent | bbc2f8ffae939eab598f583514fb132d23c11705 (diff) | |
download | qpdf-57c01ef81ff11b208188bbdedc98b6ce20c786b3.tar.zst |
In qdf mode, don't write extra XRef streams (fixes #386)
fix-qdf assumes there is exactly one XRef stream and that it is at the
end of the file.
Diffstat (limited to 'libqpdf')
-rw-r--r-- | libqpdf/QPDFWriter.cc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libqpdf/QPDFWriter.cc b/libqpdf/QPDFWriter.cc index 7b769ae4..5f97117d 100644 --- a/libqpdf/QPDFWriter.cc +++ b/libqpdf/QPDFWriter.cc @@ -1241,6 +1241,21 @@ QPDFWriter::enqueueObject(QPDFObjectHandle object) " another file."); } + if (this->m->qdf_mode && + object.isStream() && object.getDict().getKey("/Type").isName() && + (object.getDict().getKey("/Type").getName() == "/XRef")) + { + // As a special case, do not output any extraneous XRef + // streams in QDF mode. Doing so will confuse fix-qdf, + // which expects to see only one XRef stream at the end of + // the file. This case can occur when creating a QDF from + // a file with object streams when preserving unreferenced + // objects since the old cross reference streams are not + // actually referenced by object number. + QTC::TC("qpdf", "QPDFWriter ignore XRef in qdf mode"); + return; + } + QPDFObjGen og = object.getObjGen(); if (this->m->obj_renumber.count(og) == 0) |