A colleague at work was having issues converting a Word document to PDF. The final document had to be no more than 3 pages, and in Word on the Mac with Preview it was getting converted to a 3 page plus one line PDF while on Word on the PC with Acrobat it was exactly 3 pages. There was some subtle difference between the line spacing in the two cases.
I know that font substitutions can also cause similar subtle issues.
Are the fonts exactly the same on the different browsers/platforms? Are the browsers doing any different substitutions?
Cheers,
Scott.
(Who understands that wrapping, etc., shouldn't care about the font, but I think it sometimes matters.)