A PowerPoint presentation can be secured in different ways like by applying a watermark, adding signature, or making it read only. In this step by step guide, we’ll show you how to secure PowerPoint presentation in C# .NET using a password.
The Aspose.Slides for .NET API helps you secure PowerPoint presentation using C# without the need for Microsoft Interop and does not require Microsoft PowerPoint to be installed.
Steps to Secure PowerPoint Presentation in C#
- Use Aspose.Slides for .NET NuGet package
- Add reference to Aspose.Slides and Aspose.Slides.Export namespaces
- Apply Aspose license with the help of SetLicense method
- Initiate a Presentation Class instance
- Utilize Encrypt method of ProtectionManager class to secure presentation with a password
- Finally, save password protected presentation using Save method and SaveFormat.Pptx property
Code to Secure PowerPoint Presentation in C#
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System; | |
| //Install Aspose.Slides for .NET NuGet package | |
| //and then utilize the following namespace to | |
| //secure PowerPoint presentation | |
| using Aspose.Slides; | |
| using Aspose.Slides.Export; | |
| namespace SecurePowerPointPresentation | |
| { | |
| class Program | |
| { | |
| static void Main(string[] args) | |
| { | |
| //Set Aspose license before securing PowerPoint presentation | |
| //using Aspose.Slides for .NET | |
| Aspose.Slides.License AsposeSlidesLicense = new Aspose.Slides.License(); | |
| AsposeSlidesLicense.SetLicense(@"c:\asposelicense\license.lic"); | |
| //create an object of Presentation class from Aspose.Slides namespace | |
| //and provide the PowerPoint presentation to secure in the constructor | |
| Presentation PowerPointPresentationToSecure = new Presentation("PowerPointPresentationToSecure.pptx"); | |
| //specify the password with which you want to secure the presentation | |
| //this can be taken as input password from the user/admin etc. | |
| String PasswordForPresentationSecurity = "8ma2bzdqgo"; | |
| //Encrypt or secure the presentation with the password using Encrypt method | |
| //with the help of ProtectionManager | |
| PowerPointPresentationToSecure.ProtectionManager.Encrypt(PasswordForPresentationSecurity); | |
| //Finally, save the output presentation secured with password | |
| //provide PPTX as save format | |
| PowerPointPresentationToSecure.Save("PresentationSecuredWithPassword.pptx",Aspose.Slides.Export.SaveFormat.Pptx); | |
| } | |
| } | |
| } |
In the above steps and code, you learned how to secure PPTX using C#. This API is not limited to password protection, rather you can also lock and unlock PPTX file in C# as well. This makes securing PPTX using C# a very simple and easy task with the help of Aspose.Slides for .NET.
