Sharepoint 2019 - Office Online server - PDF Attachments on the list items

Kummari, Rani 66 Reputation points

Hello, We have sharepoint 2019 on-prem server environment and we have office online server. Office documents open in office online. Pdf documents are opening in browser which we want that way. Recently noticed that pdf attachments to a list item which is in modern view is opening the pdf attachments in word online. How to make the pdf attachments open in browser rather than in word online? The pdf documents stored in document library are opening in browser only. Pdf Attachments on modern list forms - opening in word online - How to make them open in browser? pdf documents stored in a document library - opening in browser - working fine pdf attachments on classic list forms - opening in browser - working fine I wonder if this started happening after a security update? Not sure. But how to fix the problem?

Microsoft Office Online Server
Microsoft Office Online Server
Microsoft on-premises server product that runs Office Online. Previously known as Office Web Apps Server.
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