Aspose::Pdf::Facades::PdfFileSecurity::TryChangePassword method
PdfFileSecurity::TryChangePassword(const System::String&, const System::String&, const System::String&) method
Changes the user password and owner password by owner password, keeps the original security settings. The new user password and the new owner password can be null or empty. The owner password will be replaced Does not throw an exception if process failed. with a random string if the new owner password is null or empty.
bool Aspose::Pdf::Facades::PdfFileSecurity::TryChangePassword(const System::String &ownerPassword, const System::String &newUserPassword, const System::String &newOwnerPassword)
| Parameter | Type | Description |
|---|---|---|
| ownerPassword | const System::String& | Original Owner password. |
| newUserPassword | const System::String& | New User password. |
| newOwnerPassword | const System::String& | New Owner password. |
ReturnValue
True for success,or false.
See Also
- Class String
- Class PdfFileSecurity
- Namespace Aspose::Pdf::Facades
- Library Aspose.PDF for C++
PdfFileSecurity::TryChangePassword(const System::String&, const System::String&, const System::String&, const System::SharedPtr<DocumentPrivilege>&, KeySize) method
Changes the user password and password by owner password, allows to reset Pdf documnent security. The new user password and the new owner password can be null or empty. The owner password will be replaced with a random string if the new owner password is null or empty. Does not throw an exception if process failed.
bool Aspose::Pdf::Facades::PdfFileSecurity::TryChangePassword(const System::String &ownerPassword, const System::String &newUserPassword, const System::String &newOwnerPassword, const System::SharedPtr<DocumentPrivilege> &privilege, KeySize keySize)
| Parameter | Type | Description |
|---|---|---|
| ownerPassword | const System::String& | Original owner password. |
| newUserPassword | const System::String& | New User password. |
| newOwnerPassword | const System::String& | New Owner password. |
| privilege | const System::SharedPtr<DocumentPrivilege>& | Reset security. |
| keySize | KeySize | KeySize.x40 for 40 bits encryption, KeySize.x128 for 128 bits encryption and KeySize.x256 for 256 bits encryption. |
ReturnValue
True for success, or false.
See Also
- Class String
- Typedef SharedPtr
- Class DocumentPrivilege
- Enum KeySize
- Class PdfFileSecurity
- Namespace Aspose::Pdf::Facades
- Library Aspose.PDF for C++
PdfFileSecurity::TryChangePassword(const System::String&, const System::String&, const System::String&, const System::SharedPtr<DocumentPrivilege>&, KeySize, Algorithm) method
Changes the user password and password by owner password, allows to reset Pdf documnent security. The new user password and the new owner password can be null or empty. The owner password will be replaced with a random string if the new owner password is null or empty. There are 6 possible combinations of KeySize and Algorithm values. However (KeySize.x40, Algorithm.AES) and (KeySize.x256, Algorithm.RC4) are invalid and corresponding exception will be raised if kit encounters this combination. Does not throw an exception if process failed.
bool Aspose::Pdf::Facades::PdfFileSecurity::TryChangePassword(const System::String &ownerPassword, const System::String &newUserPassword, const System::String &newOwnerPassword, const System::SharedPtr<DocumentPrivilege> &privilege, KeySize keySize, Algorithm cipher)
| Parameter | Type | Description |
|---|---|---|
| ownerPassword | const System::String& | Original owner password. |
| newUserPassword | const System::String& | New User password. |
| newOwnerPassword | const System::String& | New Owner password. |
| privilege | const System::SharedPtr<DocumentPrivilege>& | Reset security. |
| keySize | KeySize | KeySize.x40 for 40 bits encryption, KeySize.x128 for 128 bits encryption and KeySize.x256 for 256 bits encryption. |
| cipher | Algorithm | Algorithm.AES to encrypt using AES algorithm or Algorithm.RC4 for RC4 encryption. |
ReturnValue
True for success, or false.
See Also
- Class String
- Typedef SharedPtr
- Class DocumentPrivilege
- Enum KeySize
- Enum Algorithm
- Class PdfFileSecurity
- Namespace Aspose::Pdf::Facades
- Library Aspose.PDF for C++
