I am afraid, we do not currently have any such article in documentation that provides step by step instructions on how to integrate Aspose APIs with LIferay. But, we have logged your request and will keep you posted in this regard. (Ticket# WORDSNET-20326)
There is no limit on maximum size of document that Aspose APIs can generate or process. The only limit is the amount of RAM (memory) available on your side.
I am afraid, concurrent users cannot modify the same Excel or Word Document (e.g. this is due to limitation of MS Excel file) however reading is allowed for concurrent users.
Also, please note that Aspose.Words API is multi-thread safe as long as only one thread works on a Document at a time. There is no limit on processing of number of documents at the same time. Aspose.Words supports multi-threading and processing multiple documents simultaneously in different threads should work fine. Aspose.Words also does not impose restrictions on number of threads.
We have options for both i.e. you can use DLL/JAR for using Aspose APIs from the same system and Cloud based solution where files are processed via REST APIs. Please check following links:
Please check the following pages: