pdfRetrieveCustomDataToFile

Write the blob stored under (Location, Key) to FileName (created or overwritten). Companion pdfRetrieveCustomDataToString returns the bytes as a pointer valid until the next string-returning gap call on the instance.

int32_t __stdcall pdfRetrieveCustomDataToFileA(PPDF IPDF, const char*    Key, const char*    FileName, int32_t Location);
int32_t __stdcall pdfRetrieveCustomDataToFileW(PPDF IPDF, const wchar_t* Key, const wchar_t* FileName, int32_t Location);

Return value — 1 on success; 0 if the key is unknown at that location or the file cannot be written.

Open-action & action read-back

C# (P/Invoke)

public static extern int pdfRetrieveCustomDataToFileW(IntPtr IPDF, IntPtr Key, IntPtr FileName, int Location);
public static extern int pdfRetrieveCustomDataToFile(IntPtr IPDF, IntPtr Key, IntPtr FileName, int Location);
public static extern int pdfRetrieveCustomDataToFileA(IntPtr IPDF, IntPtr Key, IntPtr FileName, int Location);