Allow custom settings when importing Office documents

Using the Office Importer function I noticed that presentation files (e.g. Powerpoint files) are converted to pictures. This is not bad all together, unfortunately, where I work such presentation files sometimes contain huge amounts information on small sheets. Problem is, we so much information almost inevitably means small font size. Unfortunately, OO.o along with JODConverter create 640x480 px images by default when converting the presentation file to html. Obviously, this is will result in poor - if any - readability.

Now, I searched the net quite a bit, however, I found no solution to change the defaults in OO.o (or LibreOffice in my case) but what I found was people speaking about how the output could be changed with JODConverter. See these Links:

http://groups.google.com/group/jodconverter/browse_thread/thread/68ec4b18afb09e59
http://www.oooforum.org/forum/viewtopic.phtml?t=53416

I suggest something is being implemented which will at least allow to define the image size for presentation output. Possible solutions could be:

• Make it available on the UI (like a combobox)
• Make it available via XWikiPreferences Property (a little more hacky for the user but still nice, I think)
• Make it available via a XML file which allows various different customization possibilities (probably more possibilities but also probably harder to configure