I don’t know Quark or which pdf program you are using or what the desired result you want.But…I think the problem is you have a large photo or illustration that you are trying to put through the machine.It in turn is trying to convert it to raster vectors (how very spiffy) (maybe we could find a different way of doing that instead of rasters, usually I see that in Autocad type applications). While the machine is trying to generate all the vectors and rasters to reproduce the detail that you have asked it for, it throws in the towel. It says I can’t hold in memory all the pixels and at the same time convert them to rasters. Give me a break, either make the output detail less i,e, reduce the flattening detail or what it is not saying, don’t ask me to convert such a large illustration / photo.
I would attack the problem by saying do I need the resolution of that illustration or photo?
If I am doing camera ready art maybe I do need 300 dpi but is there a way I can do a large pdf and then resize it down and up the quality to what I need.?
Or if this is just handout material for a class I could take the photo way down to 150 dpi and then I’ll bet the pdf program can handle it.
There is a nice article written for Adobe in the link here that explains the whole process.I know it may not apply but you may be able to set up your Pre-sets before going to PDF now status.