Need to flatten or rasterize gigantic pdf

Question

Hi
I'm having some problems here.
I'm working in an indesign document that eventually will end up in a file with a size of about 24000x22500mm at 100 dpi.
Since indesign doesnt allow that big files, I'm working in 1:10 at 1000dpi.
I have managed to export a pdf in the appropriate size, but the problem is that I need to somehow rasterize it so that it becomes one continous image instead of consisting of a bunch of different ones as it is inside the pdf file.
This is so that the printer that are going to print this thing on a vinyl floor doesnt crash trying to understand the file.
Now, exporting the whole thing as a jpg doesnt work, cause windows or adobe wont allow jpg's of that size.
I've tried spliting it in 6 or 8 equal peices with the goal of putting them back together, but that only makes indesign crash at 1000dpi. Finally I tried lowering it to 800dpi which stoped the crashing, but replaced it with a message that I dont have enough memory (I'm sporting 12GB at 2Ghz).
So at the end, two questions:
Can anything else be done in indesign?
And is there some other program that can automaticly rasterize or at least flatten my pdf without having to open it? Can destiller be useful in this context? for some reason I dont have it..
regards
AE

Answer 1

Hey guys. Woah, this really took some figuring out, but looks like I'm finally having a breakthrough thanks to all of you. Final answer was a compound one.
Rob: placing the pdf's apparently doesnt have the same size limit as through conversion, so thanks for that tip. I'm still some times working as if on CS3.
I still had some problems though. The Document turned out almost 90k pixels square, and apparently I didnt have enough memory to convert my pdf's at that size.
Peter: thanks for the tip about multi page spreads. Had no idea you could add more than two pages to a spread.
Still at 1000 dpi and divided in 10 peices though, I just didnt have enough memory to place them in photoshop. I decided to boost my system from 12 to 24GB just to see if that helped, but amazingly it didnt. Not sure it made any difference in the end, but it was something I was concidering anyway, and it cant be wrong
Finally I started downsampeling from indesign to see how far I had to go before I was able to place it in photoshop, and at 800dpi, still divided in 10 peices, it finally worked. 80dpi SHOULD still be adequate for this print.
So now I'm working on placing them and reconnecting them in photoshop. Seems to be working smoothly so far.
Gernet: As you say, naturally no printer can print in that format. I think the maximum width is 1.98m. Length is in theory almost unlimited, but will be limited to 4-5 meters to preserve accuracy. The print will be 18x18meters plus a small entrance area, but the file is a bit larger due to the entrance area and since I dont have an exact position of the edges availible at the moment.
I also talked to the printers, and they preferred it if I could deliver the file as one continuous image. Its easier if they make the plan for where the seams would be, and it would be too much back and forth if I had to get that plan from them and then try to make sections that fit with their plan.
This is a pretty big and expensive order that is also starting to run short on time, so thank god it was even possible to solve in adobe and on my private system (work at an architecture office, so the office systems are not set up to handle this).
Exhibition ingress: http://www.nasjonalmuseet.no/en/?module=EventCalendar;action=Event.publicOpen;ID=398;templ ate=exhibitionView_en
Thanks again everyone