Aspose.Words  for C++

Unlock DOTX Files via C++

Remove protection from Word documents including DOTX file using C++ Library.

How to Remove Protection of DOTX File Using C++

In order to unlock DOTX file, we’ll use

Aspose.Words for C++

API which is a feature-rich, powerful and easy to use document protection 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

Unlock DOTX via C++

You need


referenced in your project to execute the following workflow.

  1. Load protected document in an instance of Document class
  2. Call Unprotect() function to remove protection
  3. Save the result back in DOTX format with 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 DOTX document
System::SharedPtr<Document> doc = System::MakeObject<Document>(u"inputFileName.dotx");

// Unprotect the document

// Save the document
  • 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 Unlock DOTX

    Other Supported Unlocking Formats

    Using C++, one can easily remove protection / unlocking of different formats including.

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