pdfFileName, from disk, applying the specified password, and displays its first page.
pdfLoadFileWithPasswordW is identical to
pdfLoadFileWithPassword, except that the file name is Unicode
wchar_t* instead of
pdfLoadFileWithPassword function returns
pdfOk if successful, otherwise an
Note that the password argument is always an 8-bit string because the PDF format specifies 8-bit passwords.
IMPORTANT: The PDF file on disk must not be deleted or modified
pdfCloseFile is called.