Hi, Willus
thanks for the quick help. Sometimes there's just no way to automate a particular page unless certain human intervene can be introduced
I have a wish, not a request

It would be great that there is a cfg file for converting each pdf file including the global options and also options for particular pages. The GUI can provide a button ("preview next original page"). This way we can still go over most pages of the pdf quickly(just a glance) and can pause for few pages to change the options which will be written to the cfg file. This provides the WYSIWYG to certain extent and saves lots of manual work.
thanks again for your great job!
Rodger