On the font palette tab, select "Currently editing Value properties ..." and not editing both and then in the font size enter 0. This will tell the field to auto-size the field font in the given field area.~Vipin
Time is not fix, it depens upon the size of the file. For better performance please refer below URLhttp://blogs.adobe.com/livecycle/2013/03/performance-tips-for-livecycle-output.html~Vipin