![]() A menu bar will open up with the options– ‘ Digitally Sign’, ‘Time Stamp’, and ‘Validate All Signatures’.Click on the ‘Certificate’ option that appears in the second row.Click on the ‘Tool’ tab available at the top menu bar.Open the respective file on Adobe Reader.What Is the Process to Sign PDFs & Word Docs With DSC?īelow given steps gives an overview about how to sign pdfs & word docs with DSC: Read this blog in order to know how to Sign PDFs & Word Docs using DSCs. ![]() The person or an organization should apply Digital Signature online from a licensed Certifying Authority (CA). In troduction – Sign PDFs & Word DocsĪn assigned individual or signatory can download and install the DSCs on the computer of the assigned individual or signatory. The requirement to mention the UDIN applies to both manually and digitally signed reports or certificates, including certificates uploaded online. The Institute of Chartered Accountants of India (ICAI) has allowed the use of Electronic signatures for Signing Audit Reports and certificates. How to apply one or more digital signatures to a PDF using C# and VB.NET How to digitally sign a PDF file in C#, VB.NET How to digitally sign an existing PDF document using C# and VB.NET Take a moment to peruse the documentation, where you will find other options like digitally sign a pdf file, digitally sign an existing pdf document, remove the digital signature from an existing pdf document and more with code examples.Ĭlick here to explore the rich set of Syncfusion Essential PDF features. īy executing the example, you will get the following PDF document. 'Embed the encoded digital signature to the PDF documentĪrguments.SignedData = signedCms.Encode()Ī complete work sample for digitally signed PDF document with an external signature can be downloaded from DigitallySignatureSample.ZIP. 'Compute the signature using the specified digital ID file and the passwordĭim certificate As X509Certificate2 = New X509Certificate2("DigitalSignatureTest.pfx", "DigitalPass123")ĭim cmsSigner = New CmsSigner(certificate)ĬmsSigner.DigestAlgorithm = New Oid("2.16.840.1.101.3.4.2.1") Private Sub Signature_ComputeHash(ByVal sender As Object, ByVal arguments As PdfSignatureEventArgs)ĭim documentBytes As Byte() = arguments.Dataĭim signedCms As SignedCms = New SignedCms(New ContentInfo(documentBytes), detached:=True) Embed the encoded digital signature to the PDF document.Īrguments.SignedData = signedCms.Encode() ĭim document As PdfLoadedDocument = New PdfLoadedDocument("PDF_Succinctly.pdf")ĭim signature As PdfSignature = New PdfSignature(document, document.Pages(0), Nothing, "DigitalSignature")ĪddHandler signature.ComputeHash, AddressOf Signature_ComputeHash Var cmsSigner = new CmsSigner(certificate) ĬmsSigner.DigestAlgorithm = new Oid("2.16.840.1.101.3.4.2.1") X509Certificate2 certificate = new X509Certificate2("DigitalSignatureTest.pfx", "DigitalPass123") Compute the signature using the specified digital ID file and the password. SignedCms signedCms = new SignedCms(new ContentInfo(documentBytes), detached: true) Void Signature_ComputeHash(object sender, PdfSignatureEventArgs arguments) ![]() Signature.ComputeHash += Signature_ComputeHash PdfSignature signature = new PdfSignature(document, document.Pages, null, "DigitalSignature") PdfLoadedDocument document = new PdfLoadedDocument("PDF_Succinctly.pdf")
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