Winnovative HTML to PDF Converter for UWP

Winnovative HTML to PDF Converter for UWP is distributed in a Zip archive. You can follow the link below to download the software. The Zip archive contains the portable client library for .NET, the HTML to PDF Server for Windows and for Azure and demo applications for Windows.

In order to use the Winnovative HTML to PDF Converter for UWP you first have to install the Winnovative HTML to PDF Server. The server was built on .NET library to extend its capabilities to other platforms and languages. The portable client library that you link in your Windows applications will connect to the server to convert HTML to PDF, to Image or to SVG.

Winnovative HTML to PDF Converter Server can run either in a Windows Service on a Windows machine or in an Azure Cloud Service deployed in Microsoft Azure cloud. You can find detailed installation and uninstallation instructions in the Readme.txt file from the root of the downloaded package.

The Winnovative HTML to PDF Converter for UWP API allows you to convert a HTML document to PDF in just a few lines a code. The programming interface is also very rich and allows you customize the generated PDF document in various ways. The code below is copied from the demo for HTML to PDF Converter that you can find the in the Demo folder of the software Zip package.

private async void buttonConvertUrlToPdf_Click(object sender, RoutedEventArgs e)
{
    // If another conversion is in progress then ignore current request
    bool ignoreRequest = false;
    lock(pendingConversionSync)
    {
        if (pendingConversion)
            ignoreRequest = true;
        else
        {
            msgUrlToPdfInProgress.Visibility = Windows.UI.Xaml.Visibility.Visible;
            pendingConversion = true;
        }
    }

    if (ignoreRequest)
        return;

    try
    {
        String serverIP = textBoxServerIP.Text;
        uint port = uint.Parse(textBoxServerPort.Text);

        HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter(serverIP, port);
                
        // set license key
        htmlToPdfConverter.LicenseKey = "cP7v/+7/7//u7fHv/+zu8e7t8ebm5ub/7Q==";

        // set service password if necessary
        if (textBoxServicePassword.Text.Length > 0)
            htmlToPdfConverter.ServicePassword = textBoxServicePassword.Text;

        // set HTML viewer width
        htmlToPdfConverter.HtmlViewerWidth = int.Parse(textBoxHtmlViewerWidth.Text);

        // set HTML viewer height if necessary
        if (textBoxHtmlViewerHeight.Text.Length > 0)
            htmlToPdfConverter.HtmlViewerHeight = int.Parse(textBoxHtmlViewerHeight.Text);

        // set navigation timeout
        htmlToPdfConverter.NavigationTimeout = int.Parse(textBoxHtmlViewerWidth.Text);

        // set conversion delay if necessary
        if (textBoxConversionDelay.Text.Length > 0)
            htmlToPdfConverter.ConversionDelay = int.Parse(textBoxConversionDelay.Text);

        // set PDF page size
        htmlToPdfConverter.PdfDocumentOptions.PdfPageSize = SelectedPdfPageSize();

        // set PDF page orientation
        htmlToPdfConverter.PdfDocumentOptions.PdfPageOrientation = SelectedPdfPageOrientation();

        // set margins
        htmlToPdfConverter.PdfDocumentOptions.LeftMargin = int.Parse(textBoxLeftMargin.Text);
        htmlToPdfConverter.PdfDocumentOptions.RightMargin = int.Parse(textBoxRightMargin.Text);
        htmlToPdfConverter.PdfDocumentOptions.TopMargin = int.Parse(textBoxTopMargin.Text);
        htmlToPdfConverter.PdfDocumentOptions.BottomMargin = int.Parse(textBoxBottomMargin.Text);
                
        // add header
        if (checkBoxAddHeader.IsChecked != null && (bool)checkBoxAddHeader.IsChecked)
        {
            htmlToPdfConverter.PdfDocumentOptions.ShowHeader = true;
            DrawHeader(htmlToPdfConverter, true);
        }

        // add footer
        if (checkBoxAddFooter.IsChecked != null && (bool)checkBoxAddFooter.IsChecked)
        {
            htmlToPdfConverter.PdfDocumentOptions.ShowFooter = true;
            DrawFooter(htmlToPdfConverter, true, true);
        }

        string urlToConvert = textBoxUrl.Text;
        string errorMessage = null;

        // Convert the HTML page from give URL to PDF in a buffer
        byte[] pdfBytes = await Task.Run<byte[]>(() =>
        {
            byte[] resultBytes = null;
            try
            {
                resultBytes = htmlToPdfConverter.ConvertUrl(urlToConvert);
            }
            catch (Exception ex)
            {
                errorMessage = String.Format("Conversion failed. {0}", ex.Message);
                return null;
            }

            return resultBytes;
        });

        if (pdfBytes == null)
        {
            MessageDialog errorMessageDialog = new MessageDialog(errorMessage, "Conversion failed");
            await errorMessageDialog.ShowAsync();
            return;
        }

        // Save the PDF in a file
        Windows.Storage.StorageFolder installedLocation = Windows.Storage.ApplicationData.Current.LocalFolder;
        StorageFile outStorageFile = installedLocation.CreateFileAsync("WnvHtmlToPdf.pdf", CreationCollisionOption.ReplaceExisting).AsTask().Result;
        FileIO.WriteBytesAsync(outStorageFile, pdfBytes).AsTask().Wait();

        // Open the file in a PDF viewer
        await Windows.System.Launcher.LaunchFileAsync(outStorageFile);
    }
    finally
    {
        lock (pendingConversionSync)
        {
            msgUrlToPdfInProgress.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
            pendingConversion = false;
        }
    }
}