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Thanks for your inquiry. Each Aspose products have own license. Could you please check for which Aspose products your license is? To check this please, open the license file using notepad. You will see the following tags:
It means that the license is for Aspose.Words.
If the license is for Aspose.Words and you still have the same error, please send your license file to my e-mail. Please see the following link to learn how to send the license file.