My pdf file is stored in some website ex: http://www.pdf995.com/samples/pdf.pdf
Now I can\'t rely on other websites for my app. So
I was suffering from same problem and after a lot of hit and trials, I found a way out.
You need to click on download button of google drive.
as soon as you click it, a new tab will open with a different url, of this type
https://drive.google.com/uc?id=0B1dndMpNP4zgdlTuMm5rcjFk3TQ&export=download //test url//
String url="https://drive.google.com/uc?id=0B1dndMpNP4zgdlTuMm5rcjFk3TQ&export=download";
webView = (WebView) findViewById(R.id.progr);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.loadUrl("http://drive.google.com/viewerng/viewer?embedded=true&url="+url);