[Zubersoft]

It's mostly due to the way the PDF is created. Some programs create extremely inefficient PDFs, and not every renderer handles this the same way. What program did you use to create that PDF and what DPI did you use? I had one user that had problems with load times because they were using a very old version of Adobe Acrobat to create their PDF. They used a new version of Adobe Acrobat to create the same PDF, and it rendered instantly.

Mike