Hi Nirushini,
Thank you for contacting Syncfusion Support.
At present we do not provide support for PDF viewer control in ASP.NET Core platform. We have added this feature to our feature request list. We do not have immediate plans to implement the PDF viewer control in ASP.NET Core platform and it will be available in any of our future releases.
Please let us know if you need any other assistance.
Regards,
Akshaya
