We are using your package in our software to convert word and excel docs to pdfs. Our clients then send these pdfs to other people who do things with them, like merge them together. We were using ghostscript to do this before but recently switched to aspose. Our clients are now reporting that the pdf’s they receive that are generated with aspose are not able to be merged using their tools. The tools they are using are ActivePDF and ghostscript. Why can’t the aspose generated pdf’s be merged with these tools?