# Lock or Password Protect Presentations using C++

> Protect PowerPoint and OpenDocument presentations in C++. Use Aspose.Slides for C++ to encrypt files and set write protection.

Source: https://products.aspose.com/slides/cpp/protect/
Updated: 2026-06-16



### [Protect Presentation ODP](/slides/cpp/protect/odp/)

Use Aspose.Slides for C++ to encrypt or set write protection for `ODP` presentations.

### [Protect Presentation PPT](/slides/cpp/protect/ppt/)

Use Aspose.Slides for C++ to encrypt or set write protection for `PPT` presentations.

### [Protect Presentation PPTX](/slides/cpp/protect/pptx/)

Use Aspose.Slides for C++ to encrypt or set write protection for `PPTX` presentations.