The alignment of a PDF file changes in report reader

I found this question on the IDEA linkedin site and thought I would copy it here as it is interesting.

I have a PDF file that looks straight forward and would appear to be an easy file to import. When I import it into report reader the alignment changes and what I believe to be an easy task becomes more difficult. For example, columns don't line up and spaces are inserted into the data. Any ideas for addressing this?

I reprinted the file using a PDF printer, and changed the "Default" properties to "High Quality". The new file worked like a charm!