You cannot create a PDF file with Adobe Reader, you can only modify existing files (if the PDF document does allow these changes).
This error message is a pretty good indication of a problem with the PDF file. Do you know how it was created? Do you know how it was modified after it got created? Somewhere during the lifetime of this PDF file, it got corrupted.
If the last four pages do not print, I would assume that the problem is on the the first page that does not print, r on the previous page (it may print incompletely).
Karl Heinz Kremer
PDF Acrobatics Without a Net
PDF Software Development, Training and More...
http://www.khkonsulting.com