How to add Download PDF option in Android and IOS App in meteor

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1

How to add Download PDF option in Android App using meteor. Currently I am using Below Code for Download PDF. It’s working in Browser. But When i run in App then it’s not working. Please see Below Code

<div id="viewProductPDF" style="display: block;">
    <a href="#" class="backtoproduct">Back</a> 
    <a href="http://afrivet.eu.meteorapp.com/cfs/files/pdfs/NKssvmp5yPaXaeRrR/Ultratet LA.pdf" class="downloadproduct" target="_blank" download="">Download</a>
   <iframe src="http://docs.google.com/gview?url=http://afrivet.eu.meteorapp.com/cfs/files/pdfs/NKssvmp5yPaXaeRrR/Ultratet LA.pdf&amp;embedded=true" frameborder="0" style="width:100%; height:100%"></iframe>
</div>

I am trying to download PDF but it’s not working on Android and Iphone. Please help me If you know any package or any other solution