PDF/A

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 () => {
    // Open a PDF or use an exisiting rendered PDF
	const pdf = await PdfDocument.fromFile("source_doc.pdf");

    // Perform PDF Editing Tasks...
    
    // Convert to PDF/A-3b Document
	await pdf.convertToPdfA();

    // Save the PDF/A-3b Document to File
    await pdf.saveAs("pdfa-compliant.pdf");
})();

PDF/A

IronPDF provides support for exporting PDFs to the PDF/A-3b standard, which is a strict subset of the ISO PDF specification designed for creating archival versions of documents with the assurance that they will always display exactly as they were saved.

Additionally, IronPDF is committed to adhering to Google's initiative to enhance PDF archiving and accessibility, as well as complying with Section 508 standards for PDF documents. In 2021, IronPDF transitioned to rendering PDFs from HTML using the Google Chromium HTML rendering engine, which allows the software to inherit the accessibility improvements implemented by Google. https://blog.chromium.org/2020/07/using-chrome-to-generate-more.html

With IronPDF's convertToPdfA method, you have the capability to convert normal PDFs into compliance with archiving standards. Then, the output PDF can be exported.