Hi Jari,
Thank you for using Syncfusion products.
We need not to refer ej.widgets.core.min.css stylesheet in the project to use PDF viewer control. The ej.widgets.all.min.css stylesheet will not be generated by the custom script generator from Essential Studio 14.4.0.15 version. We need to refer ej.web.all.min.css stylesheet from “../themes/default-theme/” folder in the view page of the ASP.NET MVC project to use the PDF viewer control. It will imports all the dependent stylesheets, such as ej.widgets.core.min.css and ej.theme.min.css, while running the project.
We have create a sample project to demonstrate the same. You can download the sample from the following link.
Note: In the above sample the scripts and the theme files from the custom script generator are available in the folder “Syncfusion_ejscripts”.
Please let us know if you need any further assistance.
Regards,
Sabari Anand