GetDocumentInfo

public IDocumentInfo GetDocumentInfo()

    try
    {
        using (Redactor red = new Redactor(@"C:\Temp\testfile.doc"))
        {
            IDocumentInfo docInfo = red.GetDocumentInfo();
            Console.WriteLine("Document size: {0}", docInfo.Size);
            Console.WriteLine("Document format: {0}", docInfo.FileType.FileFormat);
            Console.WriteLine("Document contains {0} pages", docInfo.PageCount);
            foreach (PageInfo page in docInfo.Pages)
            {
                Console.WriteLine("Page {0} size is {1}x{2}", page.PageNumber, page.Width, page.Height);
            }
        }
    }
    catch (GroupDocs.Redaction.Exceptions.PasswordRequiredException)
    {
        Console.WriteLine("You are trying to access document which is password protected. Please, set the password.");
    }
    catch (GroupDocs.Redaction.Exceptions.IncorrectPasswordException)
    {
        Console.WriteLine("The provided password is not valid.");
    }