A versatile przeglądarka dokumentów asp.net core control which is native .net (C# & VB.NET) and works with .net framework version 4.0 and above, .net standard 2.0 and above (including .net core). It renders documents in the browser with nothing to install and no plug-in. The catalogue is 75 file extensions across 18 families: PDF, Word (.doc, .docx), Excel (.xls, .xlsx), PowerPoint (.ppt, .pptx), CAD, Visio, Project, email, eBook, TIFF and the rest of the image formats. It is a specific list rather than “any format”, and it is worth checking your own awkward extension against it before you plan around it.
If you are starting a new .NET project, it will most likely target .NET Core or .NET Standard, and a document viewer is one of those components that is easy to postpone and awkward to add late.
Doconut is worth a look for document management systems, workflow applications and CMS projects that need to show users a file rather than hand it to them. It works with ASP.NET MVC and ASP.NET WebForms as well as Core.
Two things to know before you evaluate it. Rendering happens on your server, not in the browser, which is what allows a DWG or a PSD to open on a machine that has neither AutoCAD nor Photoshop — and which means the processing cost lands on your infrastructure. And it is installed in your own environment, making no calls to Doconut servers, so documents never leave the network you already control.
For more details, please visit Doconut.com.