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
C#
protected void convertToPdf() { // Get the server IP and port String serverIP = textBoxServerIP.Text; uint serverPort = uint.Parse(textBoxServerPort.Text); // Create a HTML to PDF converter object HtmlToPdfConverter htmlToPdfConverter = null; if (radioButtonUseTcpService.Checked) htmlToPdfConverter = new HtmlToPdfConverter(serverIP, serverPort); else htmlToPdfConverter = new HtmlToPdfConverter(true, textBoxWebServiceUrl.Text); // Set optional service password if (textBoxServicePassword.Text.Length > 0) htmlToPdfConverter.ServicePassword = textBoxServicePassword.Text; // 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 = RgbColor.Beige; // Set the style of various types of text boxes htmlToPdfConverter.PdfFormOptions.TextBoxStyle.BackColor = RgbColor.AliceBlue; htmlToPdfConverter.PdfFormOptions.PasswordTextBoxStyle.BackColor = RgbColor.MistyRose; htmlToPdfConverter.PdfFormOptions.MultilineTextBoxStyle.BackColor = RgbColor.AliceBlue; // Set the radio buttons style htmlToPdfConverter.PdfFormOptions.RadioButtonsGroupStyle.BackColor = RgbColor.AntiqueWhite; // Set the checkboxes styles htmlToPdfConverter.PdfFormOptions.CheckBoxStyle.BackColor = RgbColor.AntiqueWhite; // set the drop down lists style htmlToPdfConverter.PdfFormOptions.ComboBoxStyle.BackColor = RgbColor.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); } }