If you use multiple Aspose products in your application, for example Aspose.Words and Aspose.Pdf to convert DOC to PDF, here are a few useful tips.

• Set License for each Aspose Product Separately. Even if you have a single license file for all components, for example 'Aspose.Total.lic', you still need to call SetLicense separately for each Aspose product you are using in your application.
• Use Fully Qualified License Class Name. Each Aspose product has a License class in its namespace. For example, Aspose.Words has Aspose.Words.License and Aspose.Pdf has Aspose.Pdf.License class. Using fully qualified class name allows to avoid any confusion about which license is applied to which product.