CAD stands for Computer-Aided Design. It is used to create 2D and 3D architectural designs, computer animations, special effects in movies, technical drawings, and much more. PDF is one of the most well-known file formats that is famous due to its portability. Here comes the need to convert CAD files to PDF format when such technical drawings are to be transferred to a normal user who is not equipped with the technical software that supports CAD drawings. This article will help programmers to add the feature to convert different CAD formats like DWG, DGN, or DWF into PDF in Java applications.