title: Can I use iText.Layout.Element.Link to open custom URI scheme
body: <p>I've been trying to implement a <code>Link</code> object in a <code>Paragraph</code> to open a custom URI scheme, using <code>iText7</code>.</p>
  <p>For example, the following code works with the <code>mailto:</code> scheme:</p>
  <pre><code>Dim myUriOk As String = &quot;mailto:test@test.com&quot;
  Dim linkOk As New Link(&quot;mailto&quot;, PdfAction.CreateURI(myUriOk))
  paragraph.Add(linkOk)
  </code></pre>
  <p>When I click on the link, the default message application is opened (Gmail).</p>
  <p>When I do the same thing with my custom scheme, nothing happens:</p>
  <pre><code>Dim myUriKo As String = &quot;myCustomScheme:C:\Temp\Exemple.sgs&quot;
  Dim linkKo As New Link(&quot;test&quot;, PdfAction.CreateURI(myUriKo))
  paragraph.Add(linkKo)
  </code></pre>
  <p>The link is showing in my PDF file but the application doesn't open.</p>
  <p>When I try to open <em><strong>myCustomScheme:C:\Temp\Exemple.sgs</strong></em> in my browser, the application is correctly opening, so the configuration of my custom scheme is valid.</p>
  <p>Maybe this isn't the best way to do it, but the goal is to open an application with a file as parameter from my PDF file (generated using iText7), and I want to know if there are any other solutions to do that?</p>