PDF24 provides a free online viewer which runs directly in your browser. You don't need to install any further software to view files of different types online. The PDF24 Viewer has a lot of nice features e.g. view in full screen mode or print a file. The viewer is Java based and can be embedded into your website. The viewer supports a lot of common document formats such as PDF, Word, Excel, PowerPoint, HTML, Text, images and more.
Open Online Viewer
You can embed the online viewer into your website to show document files. Further information is located on the Online Reader page. There you will find a link generator to create links and codes to integrate the online viewer into your website.
More about the Online Reader