When trying to convert medium-sized XLS file (attached) to PDF I get Out of Memory error (2GB RAM limitation per process).
Anyway, the consumed memory amounts are just abnormal. OpenOffice manages to render this file using less then 700MB.
Taking away memory limitations allows Aspose to convert file but with cost of 2.2GBs of RAM.
OpenOffice result is 6.6MB PDF within 150s, Aspose result is 24.6MB PDF within 230s and the content is pretty the same.
I have tried to workaround this issue rendering several PDFs with SheetRender. And there I get “Parameter is not valid” when specifying OnePagePerSheet = true (with no lack using this example).
Aspose.Cells is really frustrating. And we seriously consider moving away from it, because OpenOffice does better in one-to-one comparison in every single format we are interested in.