Aspose supporting pdf digital signature

[saddam.fssai]

Hi,

I want to know weather aspose supporting pdf digital signature. If yes

help me in this regard with the code sample


Thanks
Shilpi Sharma

[asad.ali]

Hi Shilpi,

Thanks for your inquiry.

Aspose.Pdf for .NET supports the feature to digitally sign the PDF documents. Please check following code snippet, in order to sign the PDF.

string pbxFile = dataDir + “{your .pfx file}”;

string inFile = dataDir + @"DigitallySign.pdf";

string outFile = dataDir + @"DigitallySign_out.pdf";

using (Document document = new Document(inFile))

{

    using (Facades.PdfFileSignature signature = new Facades.PdfFileSignature(document))

    {

        PKCS7 pkcs = new PKCS7(pbxFile, "{password}"); // Use PKCS7/PKCS7Detached objects

        DocMDPSignature docMdpSignature = new DocMDPSignature(pkcs, DocMDPAccessPermissions.FillingInForms);

        System.Drawing.Rectangle rect = new System.Drawing.Rectangle(100, 100, 200, 100);

        // Set signature appearance

        signature.SignatureAppearance = dataDir + @"aspose-logo.jpg";

        // Create any of the three signature types

        signature.Certify(1, "Signature Reason", "Contact", "Location", true, rect, docMdpSignature);

        // Save output PDF file

        signature.Save(outFile);

    }

}

For more information, please refer to “Digitally sign PDF file” article in our API documentation. In case of any further assistance, please feel free to contact us.

Best Regards,