EVO HTML to PDF Converter

Convert HTML to PDF/A and PDF/X Documents

EVO HTML to PDF Converter for .NET Documentation

EVO HTML to PDF Converter allows you to convert a HTML to full PDF, PDF/A subset or PDF/X subset. You can choose between these standards using the PdfDocumentOptionsPdfStandardSubset property. An object of PdfDocumentOptions type is exposed by the HtmlToPdfConverterPdfDocumentOptions property.

The PDF/A subset or PDF/X standards impose additional restrictions for the generated PDF document. For example, the PDF/A-1b standard, used for long-term archiving of PDF documents, requires that all the true type fonts used by the document to be embedded in the document, the HTTP links to be disabled, the document to not use transparent objects and the document information properties to be disabled.

Code Sample - Convert HTML to PDF/A and PDF/X Documents
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protected void convertToPdfButton_Click(object sender, EventArgs e)
{
    // Create a HTML to PDF converter object with default settings
    HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter();

    // Set license key received after purchase to use the converter in licensed mode
    // Leave it not set to use the converter in demo mode
    htmlToPdfConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

    // Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
    // Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
    htmlToPdfConverter.ConversionDelay = 2;

    // Set the PDF Standard
    // By default the full PDF standard is used
    if (pdfARadioButton.Checked)
        htmlToPdfConverter.PdfDocumentOptions.PdfStandardSubset = PdfStandardSubset.Pdf_A_1b;
    else if (pdfXRadioButton.Checked)
        htmlToPdfConverter.PdfDocumentOptions.PdfStandardSubset = PdfStandardSubset.Pdf_X_1a;

    // Convert the HTML page to a PDF document in a memory buffer
    byte[] outPdfBuffer = htmlToPdfConverter.ConvertUrl(urlTextBox.Text);

    // Send the PDF as response to browser

    // Set response content type
    Response.AddHeader("Content-Type", "application/pdf");

    // Instruct the browser to open the PDF file as an attachment or inline
    Response.AddHeader("Content-Disposition", String.Format("attachment; filename=PDF_A_PDF_X.pdf; size={0}", outPdfBuffer.Length.ToString()));

    // Write the PDF document buffer to HTTP response
    Response.BinaryWrite(outPdfBuffer);

    // End the HTTP response and stop the current page processing
    Response.End();
}