SetEncryptedPayloadFromFile

Security and encryption

Opis

Uloží kompletné bajty šifrovaného PDF súboru ako associated payload vybraného nešifrovaného PDF

Syntax

Delphi

Function TPDFlib.SetEncryptedPayloadFromFile(Const FileName, Subtype, PayloadVersion: WideString): Integer;

ActiveX

Function PDFlib::SetEncryptedPayloadFromFile(FileName As String, Subtype As String, PayloadVersion As String) As Long

DLL

int DLSetEncryptedPayloadFromFile(int InstanceID, const wchar_t* FileName, const wchar_t* Subtype, const wchar_t* PayloadVersion);

Parameters

FileName	Path to the complete encrypted PDF payload
Subtype	PDF name identifying the encryption handler, such as `Standard`
PayloadVersion	Optional PDF name identifying the handler version

Return values

1	The payload was added
0	The file, metadata, selected document, or wrapper state was invalid

Remarks

The wrapper uses PDF 2.0 /EncryptedPayload, /AF, /EmbeddedFiles, and a hidden collection whose initial document is the payloadThe outer document must remain unencrypted and cannot enable PDF MAC; only one encrypted payload is permitted