ActiveReports 13
Use128Bit Property (PdfSecurity)
Example 

GrapeCity.ActiveReports.Export.Pdf Assembly > GrapeCity.ActiveReports.Export.Pdf.Section Namespace > PdfSecurity Class : Use128Bit Property
True to use 128 bit encryption with full permissions capability. False to use 40 bit encryption with limited permissions. The PdfPermissions.AllowFillIn, PdfPermissions.AllowAccessibleReaders, and PdfPermissions.AllowAssembly permissions require this value to be true.
Syntax
'Declaration
 
Public Property Use128Bit As Boolean
public bool Use128Bit {get; set;}
Remarks
The default value is true.
Example
private void btnExport_Click(object sender, System.EventArgs e)
{
    SectionReport1 rpt = new SectionReport1();
    GrapeCity.ActiveReports.Export.Pdf.Section.PdfExport p = new GrapeCity.ActiveReports.Export.Pdf.Section.PdfExport();
    p.Security.Encrypt = true;
    p.Security.OwnerPassword = "Mortimer";
    p.Security.UserPassword = "monkey";
    p.Security.Permissions = GrapeCity.ActiveReports.Export.Pdf.Section.PdfPermissions.AllowPrint;
    p.Security.Use128Bit = true;
    rpt.Run();
    this.viewer1.Document = rpt.Document;
    p.Export(rpt.Document, Application.StartupPath + "\\p.pdf");
}
Private Sub btnExport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
    Dim rpt As New SectionReport1
    Dim p As New GrapeCity.ActiveReports.Export.Pdf.Section.PdfExport
    p.Security.Encrypt = True
    p.Security.OwnerPassword = "Mortimer"
    p.Security.UserPassword = "monkey"
    p.Security.Permissions = GrapeCity.ActiveReports.Export.Pdf.Section.PdfPermissions.AllowPrint
    p.Security.Use128Bit = True
    rpt.Run()
    Me.Viewer1.Document = rpt.Document
    p.Export(rpt.Document, Application.StartupPath & "\p.pdf")
End Sub
See Also

Reference

PdfSecurity Class
PdfSecurity Members