Enum PdfEncryptionKeySize
Specifies length of the encryption key for encryption.
Namespace: Syncfusion.Pdf.Security
Assembly: Syncfusion.Pdf.Base.dll
Syntax
public enum PdfEncryptionKeySize
  Examples
// Creates a new document
PdfDocument doc = new PdfDocument();
// Set the documents permission settings
doc.Security.KeySize = PdfEncryptionKeySize.Key128Bit;
doc.Security.OwnerPassword = "Syncfusion";
doc.Security.Permissions = PdfPermissionsFlags.EditAnnotations;
doc.Security.UserPassword = "123";
//Creates a new page and adds it as the last page of the document
PdfPage page = doc.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 10);
page.Graphics.DrawString("Permission",font,PdfBrushes.Blue, new PointF(10,10));
doc.Save("Security.pdf");
doc.Close(true);
' Creates a new document
Dim doc As PdfDocument = New PdfDocument()
' Set the documents permission settings
doc.Security.KeySize = PdfEncryptionKeySize.Key128Bit
doc.Security.OwnerPassword = "Syncfusion"
doc.Security.Permissions = PdfPermissionsFlags.EditAnnotations
doc.Security.UserPassword = "123"
'Creates a new page and adds it as the last page of the document
Dim page As PdfPage = doc.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Helvetica, 10)
page.Graphics.DrawString("Permission",font,PdfBrushes.Blue, New PointF(10,10))
doc.Save("Security.pdf")
doc.Close(True)
  Fields
| Name | Description | 
|---|---|
| Key128Bit | The key is 128 bit long.  | 
      
| Key256Bit | The key is 256 bit long.  | 
      
| Key256BitRevision6 | The key is 256 bit long with revision 6. AES algorithm for PDF 2.0 security feature.  | 
      
| Key40Bit | The key is 40 bit long.  |