I have a simple illustration in CorelDraw with overlapping simi-transparent curves with uniform fillings, and I need to export it to EPS while maintaining everything in vector form. It is perfectly possible in principle since the illustration contains no gradients, only uniform fillings. By default CorelDraw rasterizes overlapping regions when exporting as EPS. After some trial and error I was able to achieve this by exporting it to EPS from Adobe Acrobat with non-standard settings. But I would prefer to stay with CorelDraw. Is it possible in CorelDraw?
It may not be possible, depending on the artwork, but if you were to make a copy of the file and create shapes based upon the intersections by using any "shape intersection" tool or functionality and then fill those shapes with the closest solid color value to simulate the overlapped colors, then you will have vectors which will not need to be rasterized.
In simpler terms: a yellow circle which laps a blue circle, you have a yellow crescent, a blue crescent, and a green "ellipse."
The big drawbacks to this are: difficulty in incorporating changes; only works with solid fills; might not be manageable for complex shapes and layering.