Widget:PDFJS
From Maths with Ronald
<iframe id="pdf-js-viewer" src="/pdfjs/web/viewer.html?file=https://files.mathswithronald.com/" title="webviewer" frameborder="0" width="100%" height="100%"></iframe>
<iframe id="pdf-js-viewer" src="/pdfjs/web/viewer.html?file=https://files.mathswithronald.com/" title="webviewer" frameborder="0" width="100%" height="100%"></iframe>