internal Boolean DecryptFile(
string inputFile,
string outputFile,
IEnumerable<string> userPasswords)
{
foreach (var pwd in userPasswords)
{
try
{
using (var reader = new PdfReader(inputFile, new ASCIIEncoding().GetBytes(pwd)))
{
reader.GetType().Field("encrypted").SetValue(reader, false);
using (var outStream = File.OpenWrite(outputFile))
{
using (var stamper = new PdfStamper(reader, outStream))
{
stamper.Close();
}
}
}
return true;
}
catch (Exception ex)
{
Logger.ErrorFormat(ex, "Error trying to decrypt file {0}: {1}", inputFile, ex.Message);
}
}
return false;
}
