I am trying to encrypt a pdf file using PdfStamper class. The pdf contains
filled signature fields.
After encrypting the pdf, the signature fields get corrupted. Can anyone
propose a solution for this.
Here is the code I am using
public void encryptPdfDoc() throws IOException, DocumentException
{
String src = "C://1.pdf";
String dest = "C://temp.pdf";
PdfReader reader = new PdfReader(src);
PdfStamper stamper = new PdfStamper(reader, new
FileOutputStream(dest));
stamper.setEncryption(null, null, PdfWriter.AllowPrinting,
PdfWriter.STRENGTH128BITS);
stamper.close();
reader.close();
}
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