Encrypt PPTX files in C# and VB.NET
The following example shows how to use the GemBox.Presentation library to load an encrypted PPTX file and how to save a presentation as an encrypted PPTX file.
using GemBox.Presentation;
// If using the Professional version, put your serial key below.
ComponentInfo.SetLicense("FREE-LIMITED-KEY");
string inputPassword = "inpass";
string outputPassword = "outpass";
var presentation = PresentationDocument.Load("PptxEncryption.pptx", new PptxLoadOptions() { Password = inputPassword });
presentation.Save("PPTX Encryption.pptx", new PptxSaveOptions() { Password = outputPassword });Imports GemBox.Presentation
Module Program
Sub Main()
' If using the Professional version, put your serial key below.
ComponentInfo.SetLicense("FREE-LIMITED-KEY")
Dim inputPassword As String = "inpass"
Dim outputPassword As String = "outpass"
Dim presentation = PresentationDocument.Load("PptxEncryption.pptx", New PptxLoadOptions With {.Password = inputPassword})
presentation.Save("PPTX Encryption.pptx", New PptxSaveOptions With {.Password = outputPassword})
End Sub
End ModuleOutput
