Thank you all for the suggestions!! I should have specified the type of figures, they are mostly images (retina/fundus photos), visual fields, etc. Basically something that would let me crop images, resize them, flexibility to move/arrange images, adjust brightness/hue/contrast/etc..
Here's an example of what the end product might look like
http://www.healio.com/~/media/Journ...lement/10_3928_15428877_20110627_03/fig4.ashx
thanks again for all your help!!!