Creating a PDF viewable online?

Hi all.

Is there any way to create a pdf, post it online and have others remotely view it through their browsers? For example, I need to pdf a lengthy InDesign document which will make the file rather large. I don't think my client will be able to download something this large to read it.

I know that with more recent versions of the Mac OS, such as Tiger and Leopard, one can view a pdf right inside of the browser without having to download it.

If my client is not using a recent OS, is there any other way they can view the pdf without having to dowload it?

thanks,
B.