I've tried to repair a file, only because my Preform software always repairs it and its time consuming. I had hoped this service could repair what Preform thinks is wrong but Makeprintable just damages it to where I can actually see the damage. The odd thing, Preform is happy now.
I tried fine tuning the repair to high resolution, up from low which did the same thing. I incorrectly attributed the artifacts to being the low resolution but not so.
Customer support service by UserEcho