Clients Cannot View PDF Files

If clients are not able to view PDF files in Chrome, they most likely disabled them. I have attached two articles which will help with this below, the first is how they most likely caused this to occur, the second includes steps on how they would be able to try to re-enable them.

How it occurred:

https://www.cnet.com/how-to/how-to-disable-chromes-pdf-viewer/

How to fix it:

https://www.guidingtech.com/chrome-pdf-viewer-not-working-troubleshooting-tips/