I have never test our component under Mono. I will ask other developer if they have any experience.
Currently Aspose.Excel cannot work on Mono because we called some win32 APIs.
Win32 APIs are also called in Aspose.Pdf.
What about Aspose.Word and Aspose.Pdf.Kit?
I found the common license code calls the win32 API so I think all of our products can't run under Mono.