I noticed that you have installed JCH Optimize + activate lazy image load feature so it doesn't render it correctly on the page.

Can you try to turn off this lazy image load feature from the JCH extension and see how it goes?

By the way, you provided that login credentials no longer work, please advise.

I have disabled the lazy load of the images (is a PDF a image?) But still not working.

I have updated my credentials on you're site so you can login now.

Cheers,

Deef

I've found out that your .htaccess rules blocked this PDF access from this directory folder .../media/...

https://www.offirent.be/media/com_easyblog/pdfjs/web/viewer.html?file=%2Fimages%2Feasyblog_articles%2F182%2Fpakketbbrievenbus.pdf

so I helped you remove |media from your .htaccess rule then it shows fine now, can you give it a check?

Davy that cost you a coffey to Arlex! hahaha

Thanks for ssnobben heads up on this.