Use File > Export > Adobe PDF (Print) and choose an appropriate PDF preset (ask the printer which one!) for the printed job.
Then choose File > Export Adobe PDF (Print) and choose Smallest File Size as the PDF preset to sample down the images and convert to RGB for screen display. If you post the print version, the PDF will be much too large if you have many pictures. At the bottom of the General panel, CHECK HYPERLINKS or they will not work.
If you're using other interactivity, you should choose File > Export > Adobe PDF (Interactive) to include other elements like buttons, media, etc.