Document.Encrypt

Encrypt(string, string, DocumentPrivilege, CryptoAlgorithm, bool)

Encrypts the document. Call then Save to get encrypted version of the document.

public void Encrypt(string userPassword, string ownerPassword, DocumentPrivilege privileges, 
    CryptoAlgorithm cryptoAlgorithm, bool usePdf20)

Parameter	Type	Description
userPassword	String	User password.
ownerPassword	String	Owner password.
privileges	DocumentPrivilege	Document permissions, see Permissions for details.
cryptoAlgorithm	CryptoAlgorithm	Cryptographic algorithm, see CryptoAlgorithm for details.
usePdf20	Boolean	Support for revision 6 (Extension 8).

Examples

The following example shows how to encrypt PDF files with DocumentPrivilege

[C#]

	// The path to your PDF File.
	string pdfFilePath = "YOUR_PDF_FILE_PATH";

	// Open document
	using (Document document = new Document(pdfFilePath))
	{
	// Encrypt PDF
	document.Encrypt("YOUR_USER_PASSWORD", "YOUR_OWNER_PASSWORD", DocumentPrivilege.AllowAll, CryptoAlgorithm.RC4x128, true);

	// Save updated PDF
	document.Save(pdfFilePath);
	}

[VB.NET]

    ' The path to your PDF File.
    Dim pdfFilePath As String = "YOUR_PDF_FILE_PATH"
    
	' Open document
    Using document As Document = New Document(pdfFilePath)
        ' Encrypt PDF
        document.Encrypt("YOUR_USER_PASSWORD", "YOUR_OWNER_PASSWORD", DocumentPrivilege.AllowAll, CryptoAlgorithm.RC4x128, True)
        ' Save updated PDF
        document.Save(pdfFilePath)
    End Using

See Also

• class DocumentPrivilege
• enum CryptoAlgorithm
• class Document
• namespace Aspose.Pdf
• assembly Aspose.PDF

---

Encrypt(string, string, Permissions, CryptoAlgorithm)

Encrypts the document. Call then Save to get encrypted version of the document.

public void Encrypt(string userPassword, string ownerPassword, Permissions permissions, 
    CryptoAlgorithm cryptoAlgorithm)

Parameter	Type	Description
userPassword	String	User password.
ownerPassword	String	Owner password.
permissions	Permissions	Document permissions, see Permissions for details.
cryptoAlgorithm	CryptoAlgorithm	Cryptographic algorithm, see CryptoAlgorithm for details.

See Also

• enum Permissions
• enum CryptoAlgorithm
• class Document
• namespace Aspose.Pdf
• assembly Aspose.PDF

---

Encrypt(string, string, Permissions, CryptoAlgorithm, bool)

Encrypts the document. Call then Save to get encrypted version of the document.

public void Encrypt(string userPassword, string ownerPassword, Permissions permissions, 
    CryptoAlgorithm cryptoAlgorithm, bool usePdf20)

Parameter	Type	Description
userPassword	String	User password.
ownerPassword	String	Owner password.
permissions	Permissions	Document permissions, see Permissions for details.
cryptoAlgorithm	CryptoAlgorithm	Cryptographic algorithm, see CryptoAlgorithm for details.
usePdf20	Boolean	Support for revision 6 (Extension 8).

See Also

• enum Permissions
• enum CryptoAlgorithm
• class Document
• namespace Aspose.Pdf
• assembly Aspose.PDF