STL (STereoLithography) file format is vastly used for 3D CAD drawings and printing. On the other hand, there are many other formats that are more portable than STL. Here comes the requirement to render the STL format into other formats. In this article, we will discuss how to render the STL files into PDF format using Java. In addition to this, we will convert the STL files to HTML, JPG, and PNG formats within Java application using examples.