Hi,
I am trying to secure a pdf using AES 128-bit. However when I check the
security settings on the PDF they always say that RC4 128-bit is being used.
Here is the code that I am using to secure the pdf:
using (Stream input = new FileStream(pdfFilename, FileMode.Open))
using (Stream output = new FileStream(outputPdfFilename, FileMode.CreateNew))
{
var reader = new PdfReader(input);
const int permissions = PdfWriter.ALLOW_SCREENREADERS
| PdfWriter.ALLOW_PRINTING
| PdfWriter.DO_NOT_ENCRYPT_METADATA
| PdfWriter.ENCRYPTION_AES_128;
PdfEncryptor.Encrypt(reader, output, true, null, ownerPassword,
permissions);
}
I am using iTextSharp 5.1.0.
I am checking the security settings using Adobe Acrobat.
Any help would be appreciated.
Thanks,
Andrew
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