Aspose::Words::DigitalSignatures::DigitalSignatureUtil::RemoveAllSignatures method

DigitalSignatureUtil::RemoveAllSignatures(const System::SharedPtr<System::IO::Stream>&, const System::SharedPtr<System::IO::Stream>&) method

Removes all digital signatures from document in source stream and writes unsigned document to destination stream. **Output will be written to the start of stream and stream size will be updated with content length.**The following formats are compatible for digital signature removal: Doc, Dot, Docx, Dotx, Docm, Odt, Ott.

static void Aspose::Words::DigitalSignatures::DigitalSignatureUtil::RemoveAllSignatures(const System::SharedPtr<System::IO::Stream> &srcStream, const System::SharedPtr<System::IO::Stream> &dstStream)

Examples

Shows how to remove digital signatures from a digitally signed document.

// There are two ways of using the DigitalSignatureUtil class to remove digital signatures
// from a signed document by saving an unsigned copy of it somewhere else in the local file system.
// 1 - Determine the locations of both the signed document and the unsigned copy by filename strings:
DigitalSignatureUtil::RemoveAllSignatures(MyDir + u"Digitally signed.docx", ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromString.docx");

// 2 - Determine the locations of both the signed document and the unsigned copy by file streams:
{
    SharedPtr<System::IO::Stream> streamIn = MakeObject<System::IO::FileStream>(MyDir + u"Digitally signed.docx", System::IO::FileMode::Open);
    {
        SharedPtr<System::IO::Stream> streamOut =
            MakeObject<System::IO::FileStream>(ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromStream.docx", System::IO::FileMode::Create);
        DigitalSignatureUtil::RemoveAllSignatures(streamIn, streamOut);
    }
}

// Verify that both our output documents have no digital signatures.
ASSERT_EQ(0, DigitalSignatureUtil::LoadSignatures(ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromString.docx")->get_Count());
ASSERT_EQ(0, DigitalSignatureUtil::LoadSignatures(ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromStream.docx")->get_Count());

See Also

DigitalSignatureUtil::RemoveAllSignatures(const System::String&, const System::String&) method

Removes all digital signatures from source file and writes unsigned file to destination file. The following formats are compatible for digital signature removal: Doc, Dot, Docx, Dotx, Docm, Odt, Ott.

static void Aspose::Words::DigitalSignatures::DigitalSignatureUtil::RemoveAllSignatures(const System::String &srcFileName, const System::String &dstFileName)

Examples

Shows how to remove digital signatures from a digitally signed document.

// There are two ways of using the DigitalSignatureUtil class to remove digital signatures
// from a signed document by saving an unsigned copy of it somewhere else in the local file system.
// 1 - Determine the locations of both the signed document and the unsigned copy by filename strings:
DigitalSignatureUtil::RemoveAllSignatures(MyDir + u"Digitally signed.docx", ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromString.docx");

// 2 - Determine the locations of both the signed document and the unsigned copy by file streams:
{
    SharedPtr<System::IO::Stream> streamIn = MakeObject<System::IO::FileStream>(MyDir + u"Digitally signed.docx", System::IO::FileMode::Open);
    {
        SharedPtr<System::IO::Stream> streamOut =
            MakeObject<System::IO::FileStream>(ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromStream.docx", System::IO::FileMode::Create);
        DigitalSignatureUtil::RemoveAllSignatures(streamIn, streamOut);
    }
}

// Verify that both our output documents have no digital signatures.
ASSERT_EQ(0, DigitalSignatureUtil::LoadSignatures(ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromString.docx")->get_Count());
ASSERT_EQ(0, DigitalSignatureUtil::LoadSignatures(ArtifactsDir + u"DigitalSignatureUtil.LoadAndRemove.FromStream.docx")->get_Count());

See Also

DigitalSignatureUtil::RemoveAllSignatures(std::basic_istream<CharType, Traits>&, std::basic_ostream<CharType, Traits>&) method

template<typename CharType,typename Traits> static void Aspose::Words::DigitalSignatures::DigitalSignatureUtil::RemoveAllSignatures(std::basic_istream<CharType, Traits> &srcStream, std::basic_ostream<CharType, Traits> &dstStream)

See Also

Aspose::Words::DigitalSignatures::DigitalSignatureUtil::LoadSignatures method Aspose::Words::DigitalSignatures::DigitalSignatureUtil::Sign method