static void UnlockPDF(Book book, string saveFolder)
{
Console.WriteLine("[-] Unlocking document: {0}", book.Title);
try
{
var pass = GeneratePDFPassword(book.ID, book.Aggr);
SaveAndRemovePDFProtection(book, saveFolder, pass);
Console.WriteLine("[|] Document unlocked.");
}
catch (Exception ex)
{
Console.WriteLine("[!] Error unlocking document: {0}", ex.Message);
}
}
static void SaveAndRemovePDFProtection(Book book, string saveFolder, string password)
{
PdfDocument pdf = CompatiblePdfReader.Open(book.FilePath, password);
pdf.SecuritySettings.OwnerPassword = string.Empty;
pdf.SecuritySettings.UserPassword = string.Empty;
pdf.SecuritySettings.DocumentSecurityLevel = PdfDocumentSecurityLevel.None;
var savePath = Path.Combine(saveFolder, book.Title + ".pdf");
var saveStream = new FileStream(savePath, FileMode.OpenOrCreate);
pdf.Save(saveStream, true);
}