可以通过不同方式保护 PowerPoint 演示文稿，例如应用水印、添加签名或使其只读。在本分步指南中，我们将向您展示如何使用密码保护 C# .NET 中的 PowerPoint 演示文稿。
Aspose.Slides for .NET API 可帮助您使用 C# 保护 PowerPoint presentation，无需 Microsoft Interop，也无需安装 Microsoft PowerPoint。
在 C# 中保护 PowerPoint 演示文稿的步骤
- 使用 Aspose.Slides for .NET NuGet 包
- 添加对 Aspose.Slides 和 Aspose.Slides.Export 命名空间的引用
- 借助 SetLicense 方法应用 Aspose 许可证
- 启动 Presentation Class 实例
- 利用 ProtectionManager 类的 Encrypt 方法使用密码保护演示文稿
- 最后，使用 Save 方法和 SaveFormat.Pptx 属性保存受密码保护的演示文稿
用 C# 保护 PowerPoint 演示文稿的代码
This file contains hidden or 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); | |
| } | |
| } | |
| } |
在上述步骤和代码中，您学习了如何使用 C# 保护 PPTX。此 API 不仅限于密码保护，您还可以在 C# 中锁定和解锁 PPTX 文件。在 Aspose.Slides for .NET 的帮助下，这使得使用 C# 保护 PPTX 成为一项非常简单易行的任务。
