Below is sample Java code showing how to lock a PDF document when applying a digital signature to it using jPDFSecure, Qoppa’s Java PDF Security SDK. // load PDF document into jPDFSecure PDFSecure pdf = new PDFSecure("c:/test/test01.pdf", null); // add a signature field SignatureField signField = pdf.addSignatureField(0, "sign here", new Rectangle(72, 72, 144, […]
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