EVO HTML to SVG Converter

EVO HTML to SVG Converter can be used in any type of .NET application to convert HTML pages to SVG vector images. The HTML to SVG Converter is not a standalone product, it is part of the HTML to PDF Converter Library and is represented by the HtmlToSvgConverter class of that library. Using this class you can convert HTML pages to SVG images. SVG is the de facto standard for vector images and the trend is to use more and more vector images instead of raster images because the vector images preserve the same quality at different zoom levels.

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  • Convert HTML pages to SVG vector images
  • Convert HTML pages to SVG images in memory or to SVG image files in a folder
  • Does not depend on any third party tools
  • Support for .NET 2.0, .NET 4.0 frameworks and later
  • Documentation and C# samples for all the features

Code Sample

The code below was taken from the HTML to SVG Converter demo application available for download in the HTML to PDF Converter product package. In this sample an instance of the HtmlToSvgConverter class is constructed and used to convert a HTML page to an SVG vector image.

protected void convertToSvgButton_Click(object sender, EventArgs e)
    // Create a HTML to SVG converter object with default settings
    HtmlToSvgConverter htmlToSvgConverter = new HtmlToSvgConverter();

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

    // Set HTML Viewer width in pixels which is the equivalent in converter of the browser window width
    htmlToSvgConverter.HtmlViewerWidth = int.Parse(htmlViewerWidthTextBox.Text);

    // Set HTML viewer height in pixels to convert the top part of a HTML page 
    // Leave it not set to convert the entire HTML
    if (htmlViewerHeightTextBox.Text.Length > 0)
        htmlToSvgConverter.HtmlViewerHeight = int.Parse(htmlViewerHeightTextBox.Text);
    // Set the maximum time in seconds to wait for HTML page to be loaded 
    // Leave it not set for a default 60 seconds maximum wait time
    htmlToSvgConverter.NavigationTimeout = int.Parse(navigationTimeoutTextBox.Text);

    // 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
    if (conversionDelayTextBox.Text.Length > 0)
        htmlToSvgConverter.ConversionDelay = int.Parse(conversionDelayTextBox.Text);

    // The buffer to receive the generated SVG document
    byte[] outSvgBuffer = null;

    if (convertUrlRadioButton.Checked)
        string url = urlTextBox.Text;

        // Convert the HTML page given by an URL to a SVG document in a memory buffer
        outSvgBuffer = htmlToSvgConverter.ConvertUrl(url);
        string htmlString = htmlStringTextBox.Text;
        string baseUrl = baseUrlTextBox.Text;

        // Convert a HTML string with a base URL to a SVG document in a memory buffer
        outSvgBuffer = htmlToSvgConverter.ConvertHtml(htmlString, baseUrl);

    // Send the SVG as response to browser

    // Set response content type
    Response.AddHeader("Content-Type", "image/svg+xml");

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

    // Write the SVG document buffer to HTTP response

    // End the HTTP response and stop the current page processing