Large 800 page Word Document - how best to show it in Wordpress


I have a large 800 page document which is an index with some explanatory text and I would like to display this on my wordpress site as reference material. It needs to be able to be searched by Google so it can appear in search results. How best to do this please ?

I could breakdown it down into 4 to 6 chunks, convert it to pdf and then display it as a pdf in wordpress. Or I could do the same and convert to a Flipbook. I don't know if Google seaerchs flash used in Flipbooks - or indeed pdf files.

I could copy and paste it into a number of posts or pages but these would be very long and may dissuade users hence the need for a good search facility.

What would you rercommend please ?

Many thanks for any advice.