Digital Signatures

Screen: Indicates that CSS rules are intended for on-screen viewing. Styles are optimized for digital screens, which typically include considerations like colors and layouts that look good on computer monitors.
Print: Instructs the browser to apply styles tailored for printed documents. This means the CSS rules are optimized for printing, ensuring readability and proper formatting when the HTML content is printed on physical media, like paper.

import {PdfDocument} from "@ironsoftware/ironpdf";

(async () => {
    // Step 1. Import a PDF
	const pdf = await PdfDocument.open("sample.pdf");

    // Step 2. Sign the PDF with digital certificate
    await pdf.signDigitalSignature({
        certificatePath: "IronSoftware.pfx",
        certificatePassword: "123456",
        signingReason: "To show how to sign a PDF",
        signingLocation: "Chicago, USA",
        signatureImage: {
            SignatureImagePath: "logo.png"
        }
    });

    //Step 3. The PDF is not signed until saved to file.
	await pdf.saveAs("signed.pdf");
})();

Digital Signatures

The process of applying a digital signature to a PDF document begins by importing an existing PDF file.

To apply a digital signature, use the signDigitalSignature method. This method requires specifying the file path to the digital certificate and providing the necessary password for signing the document. Additionally, you can include other information such as the reason for signing and the location.

Once the digital signature has been applied, export the signed PDF document using the saveAs method. This version of the document is now securely signed.