pub unsafe extern "C" fn FPDF_GetSecurityHandlerRevision(
    document: FPDF_DOCUMENT
) -> c_int
Expand description

Function: FPDF_GetSecurityHandlerRevision Get the revision for the security handler. Parameters: document - Handle to a document. Returned by FPDF_LoadDocument. Return value: The security handler revision number. Please refer to the PDF Reference for a detailed description. If the document is not protected, -1 will be returned.