You could try saving it as a TIFF - and you can use zip compression on the TIFF - that should shrink the size of the image down.
When you export the PDF make sure in the compression area of the PDF dialog box that you select ZIP there too.
To be honest - the smallest file size you'll get is probably a JPG - if you're not too fussy then that's what I'd use.
300ppi for a banner photo is pretty high - you only really need that much resolution for magazine - when you're reading it at arms length.
You could probably drop the resolution to 220 or even 150. The last pull up stand I did the image resolution was 30ppi and it looked fine from the distance it was viewed at.
Thanks for the reply - and yes, I thought the ppi was too high as well HOWEVER thats the specs advised by the production house. I've managed to get the file to export using a ppi of 500 - so it will print at 250ppi full size - which i think is ok, anything above that and my machine just doesn't want to play.
I will try and use the zip compression and see what they results in. Unfortunately, becuase of the size and ppi, I'm only given the 3 file format options to save in as above.
I've explained the situation to my production house and am awaiting their reply. These banners, although will possibly be seen up close, won't in no way be viewed at arms length.
Thanks for your help
Yeh 300 ppi is a rule of thumb thing - it's not an exact number for all printing purposes.
I wouldn't be too bothered with 250ppi it will look fine I'd imagine.
Your output service may have reasons for wanting to output with 300 ppi effective at print size, but I've never has a problem with banners output at 150 ppi at full size.