Did you use pictures that came straight out of the camera? If so, you could try to resize all of them (with a batch processing software or something like that) and then compile them into a PDF. I would assume that this does make a difference when it comes to file size.
...its a MBP, 8Gb is the max...
dynasty warriors?make them black and white, will drop it under 8GB
dynasty warriors?
that doesnt fix the issue though. 8GB is still massive.
im not following how that will help in this case...I'm not sure how far below 8GB it will drop it but it will go below it