EVO HTML to PDF Converter

Convert HTML Forms to PDF Forms

EVO HTML to PDF Converter for .NET Documentation

EVO HTML to PDF Converter can be configured to convert HTML form elements like radio buttons, check boxes, text boxes and buttons to PDF form fields by simply turning on the PdfFormOptionsAutoPdfFormEnabled option. An object of PdfFormOptions type is exposed by the HtmlToPdfConverterPdfFormOptions property.

Code Sample - Convert HTML Forms to PDF Forms
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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;

    // Enable the automatic conversion of the HTML form to a PDF form 
    htmlToPdfConverter.PdfFormOptions.AutoPdfFormEnabled = createPdfFormCheckBox.Checked;

    // Set the submit buttons style
    htmlToPdfConverter.PdfFormOptions.SubmitButtonStyle.BackColor = Color.Beige;

    // Set the style of various types of text boxes
    htmlToPdfConverter.PdfFormOptions.TextBoxStyle.BackColor = Color.AliceBlue;
    htmlToPdfConverter.PdfFormOptions.PasswordTextBoxStyle.BackColor = Color.MistyRose;
    htmlToPdfConverter.PdfFormOptions.MultilineTextBoxStyle.BackColor = Color.AliceBlue;

    // Set the radio buttons style
    htmlToPdfConverter.PdfFormOptions.RadioButtonsGroupStyle.BackColor = Color.AntiqueWhite;

    // Set the checkboxes styles
    htmlToPdfConverter.PdfFormOptions.CheckBoxStyle.BackColor = Color.AntiqueWhite;

    // set the drop down lists style
    htmlToPdfConverter.PdfFormOptions.ComboBoxStyle.BackColor = Color.LightCyan;

    byte[] outPdfBuffer = null;

    if (convertHtmlRadioButton.Checked)
    {
        // Convert a HTML string to a PDF document with form fields
        string htmlWithForm = htmlStringTextBox.Text;
        outPdfBuffer = htmlToPdfConverter.ConvertHtml(htmlWithForm, String.Empty);
    }
    else
    {
        // Convert the HTML page to a PDF document with form fields
        string url = urlTextBox.Text;
        outPdfBuffer = htmlToPdfConverter.ConvertUrl(url);
    }

    // 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=Auto_Create_PDF_Forms.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();
}