Retrieving signature information from a signed PDF

This java sample program shows how to open a signed PDF and retrieve signature information from it such as signer’s name, sign reason, location, date, etc…. This sample uses Qoppa’s Java PDF Library jPDFSecure but can be easily changed to use jPDFProcess.

// Load the signed document
PDFSecure pdfDoc = new PDFSecure ("C:\\test\\output.pdf", null);
if(pdfDoc.getSignatureFields() != null && pdfDoc.getSignatureFields().size() >= 1)
{
  // get first signature field
  SignatureField signField = pdfDoc.getSignatureFields().get(0);
  // Signature Name / Signature Alias 
  System.out.print("Name " + signField.getSignName());
  // Signature Location
  System.out.print("Location " + signField.getSignLocation());
  // Signature Reason
  System.out.print("Reason " + signField.getSignReason());
  // Signature Date / Time
  System.out.print("Date Time " + signField.getSignDateTime());
}
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