PDFRasterizer.NET 4.0 is now available. Supports .NET Core. Renders pixel-perfectly.

Render to Xamarin iOS Image view

Given the following Xamarin iOS MainPage.xaml (parts omitted):

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
  <!-- parts omitted -->

  <Image x:Name="image"
         VerticalOptions="EndAndExpand" />


The following MainPage partial class (code omitted), renders the first page of embedded resource tiger.pdf to the Image above:

public partial class MainPage : ContentPage
  private Stream imageStream;
  private Stream pdfStream;
  private Document document;

  public MainPage()

  public void LoadPDF()
    if (pdfStream == null)
      var assembly = typeof(MainPage).Assembly;
      using (Stream resourceStream = assembly.GetManifestResourceStream("RenderPDF.tiger.pdf"))
        if (resourceStream != null)
          pdfStream = new MemoryStream();

  public async void RenderFirstPage()
    Task<ImageSource> result = Task<ImageSource>.Factory.StartNew(() => RenderPage(0));
    image.Source = await result;

  public ImageSource RenderPage(int pageNum)
    if (pdfStream == null)
      return null;

    if (document == null)
      document = new Document(pdfStream);

    var page = document.Pages[pageNum];
    imageStream = new MemoryStream();
    page.SaveAsBitmap(imageStream, ImageEncoding.Png, 72);
    imageStream.Position = 0;
    return ImageSource.FromStream(() => imageStream);
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