Hi Yogi
WPViewPDF supports all standard encrypted PDF types, but you need an updated version of wpcubed_pdf_plugin.pas. Email me for it.
ImageEnView1.IO.Params.Dict.Insert( 'PDF:Password', edtPassword.Text );
ImageEnView1.IO.LoadFromFile( 'C:\MyPDF.pdf' );
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com