Adobe's Document Security User Guide (http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/doc_sec_user_guide_9.pdf) states (In paragraph 4.1.1) that the following options exist: - Password security - Public Key certificate security - ALCRMS
Can I inspect a PDF file with iText (specifically iTextSharp 5) to determine which specific security method it uses?
I checked checking if pdf is password protected using itextsharp but I would like to discriminate between the various methods, not just determine that the document is protected.
