diff options
| author | Miklos Vajna <vmiklos@collabora.co.uk> | 2016-11-09 16:53:51 +0100 |
|---|---|---|
| committer | Miklos Vajna <vmiklos@collabora.co.uk> | 2016-11-09 19:22:18 +0000 |
| commit | bf64b4f1451896810b66fd6edf6175f0dd46ac44 (patch) | |
| tree | 26da592c27b22f750dff3982dc1a0e012ca5f36f /xmlsecurity | |
| parent | f68b1541ea2f26a1137d4d20ceb23d036d0a00b7 (diff) | |
xmlsecurity PDF sign: compress the xref stream
This way it's a bit smaller for large files and our output is closer to
what Acrobat produces.
Change-Id: Ide5f7b58a74a9d6ad7d806814eb57cb6931023cc
Reviewed-on: https://gerrit.libreoffice.org/30726
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Diffstat (limited to 'xmlsecurity')
| -rw-r--r-- | xmlsecurity/source/pdfio/pdfdocument.cxx | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/xmlsecurity/source/pdfio/pdfdocument.cxx b/xmlsecurity/source/pdfio/pdfdocument.cxx index fa0d9cc99a4a..c73ee5d55ac9 100644 --- a/xmlsecurity/source/pdfio/pdfdocument.cxx +++ b/xmlsecurity/source/pdfio/pdfdocument.cxx @@ -738,7 +738,7 @@ bool PDFDocument::Sign(const uno::Reference<security::XCertificate>& xCertificat } m_aEditBuffer.WriteUInt32AsString(nXRefStreamId); - m_aEditBuffer.WriteCharPtr(" 0 obj\n<<"); + m_aEditBuffer.WriteCharPtr(" 0 obj\n<</Filter/FlateDecode"); // ID. auto pID = dynamic_cast<PDFArrayElement*>(m_pXRefStream->Lookup("ID")); @@ -784,6 +784,18 @@ bool PDFDocument::Sign(const uno::Reference<security::XCertificate>& xCertificat // Length. m_aEditBuffer.WriteCharPtr("/Length "); + { + ZCodec aZCodec; + aZCodec.BeginCompression(); + aXRefStream.Seek(0); + SvMemoryStream aStream; + aZCodec.Compress(aXRefStream, aStream); + aZCodec.EndCompression(); + aXRefStream.Seek(0); + aXRefStream.SetStreamSize(0); + aStream.Seek(0); + aXRefStream.WriteStream(aStream); + } m_aEditBuffer.WriteUInt32AsString(aXRefStream.GetSize()); if (!m_aStartXRefs.empty()) |