Forum Discussion
SiForceRyan
Dec 05, 2025Copper Contributor
Outlook New PDF and Word not previewing
I am having an issue on a domain user PC ilin which the user's Attach>open dialog does not preview pdf or word files, but does preview photos. This box seems to be using Windows 11 file explorer to h...
ThomasWhite
Dec 08, 2025Iron Contributor
Your issue sounds like a classic problem with the Outlook attachment preview pane not displaying PDFs or Word documents in the Attach>Open dialog, even though other preview methods like in Outlook Classic or File Explorer work fine. Since the preview works in Outlook’s modern UI and in File Explorer, but not in the attachment dialog, it suggests a problem with the integration or the preview handler registration specifically for that dialog.