A PDF viewer is a desktop application, allowing a user to visually inspect a PDF, you know, as in Adobe Acrobat, or preview on the Mac. It's a program that lets you open a PDF. Most web browsers have one included.
We do not include a PDF viewer within IronPDF, because it's not necessary that we add one. The best way to add PDF viewing to your application is using web technology. The default web browser with an operating system can already view a PDF. Simply use a web browser control within your PDF viewing desktop application and give it the URL of a PDF, and it will already expose the PDF in the best possible way. You if you wish to you to view a PDF on the web, you may wish to look at simply viewing that PDF as a URL or within an iframe or using the amazing pdf.js Library, which is a free JavaScript library, which adds complete PDF rendering to any web application.
There is a way to use IronPDF with a browser to view PDFs. But, generally IronPDF has little control over this. This is more to do with your MVC application or your SPX web view. I suggest that within a conventional SPX ASP.net project, you can use IronPDF.ASPX to PDF.render this page as a PDF. A method that automatically converts your web form to a PDF and has options to display it directly in the browser or download.
To use IronPDF with the browser to view PDFs. First use IronPDF to render an HTML document as a PDF and then you view it in the browser. You can do this in .Net by using process.start to open a web browser and giving the URL of the PDF that's the local file path as a parameter.
There are different kinds of other PDF heroes available for Windows applications. Well, you could use PDF EM. I'm sure there is a free .Net wrapper for that allowing you to use the Chrome Web browsers built in PDF viewing functionality. You could use Adobe Acrobat, but that would limit your application to only work on computers where acrobats are already installed and that's not something we can depend on.

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