EVO HTML to PDF Converter can set the location in a PDF page where to go when the generated PDF is opened in a PDF viewer using a PdfActionGoTo object which can be assigned to DocumentOpenAction property. Additionally you can set the initial zoom level using the ExplicitDestinationZoomPercentage property of destination object used to construct the PdfActionGoTo object.
Code Sample - Set Initial Zoom Level of the Generated PDF Document
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; // Convert a HTML page to a PDF document object Document pdfDocument = htmlToPdfConverter.ConvertUrlToPdfDocumentObject(urlTextBox.Text); int goToPageNumber = int.Parse(pageNumberTextBox.Text); // Get destination PDF page PdfPage goToPage = pdfDocument.GetPage(goToPageNumber - 1); // Get the destination point in PDF page float goToX = float.Parse(xLocationTextBox.Text); float goToY = float.Parse(yLocationTextBox.Text); PointFloat goToLocation = new PointFloat(goToX, goToY); // Get the destination view mode DestinationViewMode viewMode = SelectedViewMode(); // Create the destination in PDF document ExplicitDestination goToDestination = new ExplicitDestination(goToPage, goToLocation, viewMode); // Set the zoom level when the destination is displayed if (viewMode == DestinationViewMode.XYZ) goToDestination.ZoomPercentage = int.Parse(zoomLevelTextBox.Text); // Set the document Go To open action pdfDocument.OpenAction = new PdfActionGoTo(goToDestination); // Save the PDF document in a memory buffer byte[] outPdfBuffer = pdfDocument.Save(); }