Aspose.Words  for C++

Encrypt OTT Files via C++

Password-protect Word documents including OTT format using .NET Library.

How to Secure OTT File Using C++

In order to protect OTT file, we’ll use

Aspose.Words for C++

API which is a feature-rich, powerful and easy to use document encryption API for C++ platform. You can download its latest version directly, just open


package manager, search for Aspose.Words.Cpp and install. You may also use the following command from the Package Manager Console.


PM> Install-Package Aspose.Words.Cpp

Steps to Protect OTT Files via C++

Document protection using Aspose.Words APIs can be done with just few lines of code.

  1. Load OTT file
  2. Use Protect() method with ProtectionType & password
  3. Save the protected file using Save() method

System Requirements

Aspose.Words for C++ supports on all major platforms and Operating Systems. Please make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with C++ Runtime Environment for Windows 32 bit, Windows 64 bit and Linux 64 bit.
  • Aspose.Words for C++ DLL referenced in your project.


// Load OTT document
System::SharedPtr<Document> ott = System::MakeObject<Document>(sourceFile);

// Protect the document
ott->Protect(ProtectionType::AllowOnlyFormFields, u"password");

// Save the OTT file
  • About Aspose.Words for C++ API

    Aspose.Words API can be used to load, view and convert Microsoft Word and OpenDocument Formats like DOC, DOCX, ODT to PDF, XPS, HTML and various other formats. You can also create new documents from scratch and save them in the supported formats. Aspose.Words is a standalone API that is suitable for server side and backend systems where high performance is required. It does not depend on any software like Microsoft or OpenOffice. ‎

    Free App to Protect OTT

    OTT What is OTT File Format

    Files with OTT extension represent template documents generated by applications in compliance with the OASIS' OpenDocument standard format. These are created with word processor applications such as free OpenOffice Writer and can hold settings that can be used to generate new documents from these template files. These settings include page margins, borders, headers, footers, and other page settings. Such templates are used in official documents such as company letterheads and standardized forms.

    Read More

    Other Supported Protection Documents

    Using C++, one can protect other files including.

    DOC (Microsoft Word Binary Format)
    DOCX (Office 2007+ Words Document)
    DOT (Microsoft Word Template Files)
    DOTX (Microsoft Word Template File)
    ODT (OpenDocument Text File Format)