<p>What is the recommended way to embed PDF in HTML?</p>

<ul>
<li>iFrame? </li>
<li>Object? </li>
<li>Embed?</li>
</ul>

<p>What does Adobe say itself about it?</p>

<p>In my case, the PDF is generated on the fly, so it can't be uploaded to a third-party solution prior to flushing it.</p>

Probably the best approach is to use the
PDF.JS
library. It's a pure
HTML5
/
JavaScript
renderer for PDF documents without any third-party plugins.
Online demo:
https://mozilla.github.io/pdf.js/web/viewer.html
GitHub:
https://github.com/mozilla/pdf.js