In my experience, it was a bit buggy especially when trying to add images to the pdf it kept adding blank areas instead of the image so I just had to get rid of the image at the end and use an svg illustration instead. It is also time-consuming to set up and it relies on inline-styling but after going through all that it worked at the end and I was able to add the pdf file to the page.
Best plugin to view PDFs on your site super lightweight and well documented! I have used it in a book library project and it delivered what it promised. I highly recommend it!