PDF signature example. Hello, Is there any simple PDF digital signature for reference? Sign(Multi-sign) a PDF and verify a PDF using iText? Is it possible to add a. More Add Digital Signatures To A Pdf File Itext videos.
Disney Mix It Plug In. The error is in this line: PdfStamper stamper = PdfStamper.CreateSignature(reader, fout, ' 0'); Change it to: PdfStamper stamper = PdfStamper.CreateSignature(reader, fout, ' 0', true); The explanation: you are not signing the document in append mode. On further inspection of your code, I see that you're also adding an image. That can be tricky. Adding the new signature in append mode solves one problem. Adding that extra content could cause an extra problem depending on the version of iText you are using.