Thanks for your interest in Aspose products.
No, you can not convert a PDF document to EPUB format using Aspose.Words. Aspose.Words for .NET is a class library that enables your applications to perform a great range of document processing tasks. Aspose.Words supports conversion from the file formats mentioned here
to EPUB. Moreover, with Aspose.Words you can generate, modify, convert, render and print documents. For more information about Aspose.Words, I would suggest you please read the documentation here
Since your query involves multiple products, I am moving your thread in Aspose.Total forum where you will be guided appropriately.