![]() ![]() Set the signature details including date, name, location, reason, handwritten signature image, and document permissions.Create a PdfSignature object and specify its position and size on the document. ![]() ![]() Load a pfx certificate file while initializing the PdfCertificate object.Load a sample PDF file using PdfDocument.LoadFromFile() method.The following are the steps to add a visible digital signature to PDF using Spire.PDF for. Signature.DocumentPermissions = PdfCertificationFlags.ForbidChanges | PdfCertificationFlags.AllowFormFill 'Set the document permission to forbid changes but allow form fill Dim doc As PdfDocument = New PdfDocument()ĭoc.LoadFromFile("C:\\Users\\Administrator\\Desktop\\sample.pdf")ĭim cert As PdfCertificate = New PdfCertificate("C:\\Users\\Administrator\\Desktop\\M圜ertificate.pfx","e-iceblue")ĭim signature As PdfSignature = New PdfSignature(doc,doc.Pages( - 1),cert,"MySignature") ![]()
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