I recently wrote a script that will export each item (groups count as one item) on each page as a separate png file.

It will ask for a resolution, directory the indesign files are located, and where you want the png files saved, then parse ALL indesign files in the folder. It outputs the png files as indesign-name_page#_item#.png

I have few other scripts that
– output each layer on each page as png
– output each page of all indesign files in a folder to jpg
– output every indesign file in a folder to pdf (can select pdf options)

https://gist.github.com/anonymous/7677d654c1357ee6d3ae1a1dc246c3b6