Hi John,
Thanks for your patience.
We have validated the requirement to show thumbnail preview for PDF files and considered it as a feature in File Manager component. This feature will be included in any of our upcoming releases.
At the planning stage for every release cycle, we review all open features. Usually, Syncfusion will plan and implement the features based on feature rank, customer requested count and volume wish-list.
The status of implementation can be tracked through the below portal link:
If you have any more specifications/suggestions for the feature request, you can add them as a comment in the portal.
Please let us know if you need further assistance.
Regards,
Keerthana R.