Unlock ODP using C#

Build your own .NET apps to remove passwords from PowerPoint and decrypt presentations files using server-side APIs.

Removing Encryption from ODP Presentation via C#

Using Aspose.Slides for .NET, you can remove the encryption or password protection on the ODP presentation. This way, users become able to access or modify the ODP presentation without restrictions.

Disabling Password Protection from ODP using C#
LoadOptions loadOptions = new LoadOptions {Password = "123123"};
using (Presentation presentation = new Presentation("pres.odp", loadOptions))
{
    presentation.ProtectionManager.RemoveEncryption();
    presentation.Save("encryption-removed.odp", SaveFormat.Odp);
}

Removing Write Protection from ODP Presentation using C#
using (Presentation presentation = new Presentation("pres.odp"))
{
    presentation.ProtectionManager.RemoveWriteProtection();
    presentation.Save("write-protection-removed.odp", SaveFormat.Odp);
}

How to Remove Password From ODP via C#

These are the steps to remove protection from ODP files.

Load ODP with an instance of Presentation
Remove Write Protection using ProtectionManager class
Save result in ODP format

Other Supported Formats

Using C#, You can also remove protection from the following formats:

PPT

PPTX