Our PDF Embedder Premium plugin for WordPress provides a dynamic and elegant viewer for your website visitors, with added support for mobile devices. Our plugins have a unique method for embedding PDFs, using jаvascript only, and not using iframes or third-party services which can suffer outages. Upload PDFs and embed them straight into your site - just like adding images! PDFs will be automatically sized to their natural size and shape.

Demo: https://wp-pdf.com/premium/