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Working Basic Example for .NET MVC

I am very interested in the GroupDocs.Viewer Product in use of an .net MVC Web-Application.
Before purchasing, so i checked a temporary license for evaluation.
Outgoing from the promises from the git-site:

i need the following features for testing/evaluation:
  • Fully customizable navigation panel
  • Rotate pages
  • Zoom in/out documents without quality loss in HTML mode
  • loading/rendering files fast with memory streams
  • example for annotation feature in webview-mode (MVC)
  • example for redaction feature in webview-mode (MVC)

Where can i find working solutions or direct support for this cases, all found example projects are not working for me - i have compiler issues which are i can not resolve. Compiler is stopping with signal false - but wihtout protocol! I am using VS2019 and tried that with target framework 4.8 and .net core 3.1…

Further support will be relevant for purchase descision.
thx in advance!


Thank you for your interest to GroupDocs.Viewer.

We have updated the MVC Demo, please try cloning it one more time and checking if the compiler issue still exists.

In case you’re going to build a .NET Core you can check GroupDocs.Viewer.UI repository and related NuGet Package.