Visible lines are closing if it becomes too small

 From:  Michael Gibson
8508.4 In reply to 8508.3 
Hi Jay, yes unfortunately a high resolution does consume a lot of memory. This will be solved by the next v4 release which will be 64-bit but for now I guess the main thing you'd need to do when running into this would be to import your PDF into a 2D vector editing program and clean it up in there.

- Michael