Helvetica Neue Displays Oddly in Acrobat 9 Pro

Question

I just finished creating a quick help document in Pages '09. I used Helvetica Neue for the entire document. Everything in the Pages document looks fine. Then I exported it as a PDF from Pages (I believe the format is Acrobat 4). When I brought up the export to view in Acrobat 9 Pro, the headers (HN Bold, 10pt) are all crooked along the tops of the letters, almost as if each letter were a slightly different point size. I notice it most with letters with curves (bowls) like "a, e, g," but not letters like "E, l, i, n."
I thought perhaps there was some problem with the PDF version, so instead of exporting it, I simply printed (I was trying to avoid that because I didn't want to lose my hyperlinks). I had the same problem.
On a lark, I sent it to my work computer, which has Acrobat 8 Pro for Windows. After getting the error about the file being created in a newer format, the file opened up and looks perfectly fine.
Any ideas?
My sincere thanks for any suggestions!
Keith

Answer 1

Reader and Acrobat use their own font rendering engine, so things can look different in these compared to Preview. I'm guessing your document will print (to paper) without any problems from any of these, but sometimes the Mac versions of Reader and Acrobat can look sort of ugly. (FWIW, I don't like the way they render regular Helvetica either.)
On the other hand, Preview has lots of problems with transparencies and gradients, so it goes both ways.