Note You can use GroupDocs.Assembly without the license. The usage and functionalities are pretty much same as the licensed one but you will face few limitations while using the API without license. Evaluation Version Limitations You can easily download GroupDocs.Assembly for evaluation. The evaluation download is the same as the purchased download. The evaluation version simply becomes licensed when you add a few lines of code to apply the license....Watermark Product Solution GroupDocs...it inserts an evaluation watermark at the top of the document...